USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - celecoxib (unii: jcx84q7j1l) (celecoxib - unii:jcx84q7j1l) - celecoxib capsules are indicated for the management of the signs and symptoms of oa [ see clinical studies ( 14.1) ] for the management of the signs and symptoms of ra [ see clinical studies ( 14.2) ] for the management of the signs and symptoms of jra in patients 2 years and older [ see clinical studies ( 14.3) ] for the management of the signs and symptoms of as [ see clinical studies ( 14.4) ] for the management of acute pain in adults [ see clinical studies ( 14.5) ] for the management of primary dysmenorrhea [ see clinical studies ( 14.5) ] • celecoxib capsules are contraindicated in the following patients: known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to celecoxib, any components of the drug product [ see warnings and precautions ( 5.7, 5.9) ]. • history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other nsaids. severe, sometimes fatal, anaphylactic reactions to nsaids, have been reported in such patients [ see warnings and precautions ( 5.7, 5.8) ]. • in the setting of cabg surgery [ see warnings and precautions ( 5.1) ]. • in patients who have demonstrated allergic-type reactions to sulfonamides [ see warnings and precautions ( 5.7) ]. risk summary use of nsaids, including celecoxib capsules, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. because of these risks, limit dose and duration of celecoxib capsules use between about 20 and 30 weeks of gestation and avoid celecoxib capsules use at about 30 weeks of gestation and later in pregnancy (see clinical considerations, data). premature closure of fetal ductus arteriosus use of nsaids, including celecoxib capsules, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment use of nsaids at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. data from observational studies regarding other potential embryofetal risks of nsaid use in women in the first or second trimesters of pregnancy are inconclusive. in animal reproduction studies, embryo-fetal deaths and an increase in diaphragmatic hernias were observed in rats administered celecoxib daily during the period of organogenesis at oral doses approximately 6 times the maximum recommended human dose (mrhd) of 200 mg twice daily. in addition, structural abnormalities (e.g., septal defects, ribs fused, sternebrae fused and sternebrae misshapen) were observed in rabbits given daily oral doses of celecoxib during the period of organogenesis at approximately 2 times the mrhd (see data). based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. in animal studies, administration of prostaglandin synthesis inhibitors such as celecoxib, resulted in increased pre- and postimplantation loss. prostaglandins also have been shown to have an important role in fetal kidney development. in published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. all pregnancies have a background risk of birth defect, loss, or other adverse outcomes. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations fetal/neonatal adverse reactions premature closure of fetal ductus arteriosus: avoid use of nsaids in women at about 30 weeks gestation and later in pregnancy, because nsaids, including celecoxib capsules, can cause premature closure of the fetal ductus arteriosus (see data). oligohydramnios/neonatal renal impairment: if an nsaid is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible. if celecoxib capsules treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. if oligohydramnios occurs, discontinue celecoxib capsules and follow up according to clinical practice (see data). labor or delivery there are no studies on the effects of celecoxib capsules during labor or delivery. in animal studies, nsaids, including celecoxib, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. data human data the available data do not establish the presence or absence of developmental toxicity related to the use of celecoxib capsules. premature closure of fetal ductus arteriosus: published literature reports that the use of nsaids at about 30 weeks of gestation and later in pregnancy may cause premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment: published studies and postmarketing reports describe maternal nsaid use at about 20 weeks gestation or later in pregnancy associated with fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. these adverse outcomes are seen, on average, after days to weeks of treatment, although oligohydramnios has been infrequently reported as soon as 48 hours after nsaid initiation. in many cases, but not all, the decrease in amniotic fluid was transient and reversible with cessation of the drug. there have been a limited number of case reports of maternal nsaid use and neonatal renal dysfunction without oligohydramnios, some of which were irreversible. some cases of neonatal renal dysfunction required treatment with invasive procedures, such as exchange transfusion or dialysis. methodological limitations of these postmarketing studies and reports include lack of a control group; limited information regarding dose, duration, and timing of drug exposure; and concomitant use of other medications. these limitations preclude establishing a reliable estimate of the risk of adverse fetal and neonatal outcomes with maternal nsaid use. because the published safety data on neonatal outcomes involved mostly preterm infants, the generalizability of certain reported risks to the full-term infant exposed to nsaids through maternal use is uncertain. animal data celecoxib at oral doses ≥150 mg/kg/day (approximately 2 times the human exposure at 200 mg twice daily as measured by auc 0-24 ), caused an increased incidence of ventricular septal defects, a rare event, and fetal alterations, such as ribs fused, sternebrae fused and sternebrae misshapen when rabbits were treated throughout organogenesis. a dose-dependent increase in diaphragmatic hernias was observed when rats were given celecoxib at oral doses ≥30 mg/kg/day (approximately 6 times human exposure based on the auc 0-24 at 200 mg twice daily for ra) throughout organogenesis. in rats, exposure to celecoxib during early embryonic development resulted in pre-implantation and post-implantation losses at oral doses ≥50 mg/kg/day (approximately 6 times human exposure based on the auc 0-24 at 200 mg twice daily for ra). celecoxib produced no evidence of delayed labor or parturition at oral doses up to 100 mg/kg in rats (approximately 7-fold human exposure as measured by the auc 0-24 at 200 mg twice daily). the effects of celecoxib capsules on labor and delivery in pregnant women are unknown. risk summary limited data from 3 published reports that included a total of 12 breastfeeding women showed low levels of celecoxib in breast milk. the calculated average daily infant dose was 10 to 40 mcg/kg/day, less than 1% of the weight-based therapeutic dose for a two-year old-child. a report of two breastfed infants 17 and 22 months of age did not show any adverse events. caution should be exercised when celecoxib capsules are administered to a nursing woman. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for celecoxib capsules and any potential adverse effects on the breastfed infant from the celecoxib capsules or from the underlying maternal condition. infertility females based on the mechanism of action, the use of prostaglandin-mediated nsaids, including celecoxib capsules, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin mediated follicular rupture required for ovulation. small studies in women treated with nsaids have also shown a reversible delay in ovulation. consider withdrawal of nsaids, including celecoxib capsules, in women who have difficulties conceiving or who are undergoing investigation of infertility. celecoxib capsules are approved for relief of the signs and symptoms of juvenile rheumatoid arthritis in patients 2 years and older. safety and efficacy have not been studied beyond six months in children. the long-term cardiovascular toxicity in children exposed to celecoxib capsules has not been evaluated and it is unknown if long-term risks may be similar to that seen in adults exposed to celecoxib capsules or other cox-2 selective and non-selective nsaids [ see boxed warning, warnings and precautions ( 5.5), and clinical studies ( 14.3 )]. the use of celecoxib in patients 2 years to 17 years of age with pauciarticular, polyarticular course jra or in patients with systemic onset jra was studied in a 12-week, double-blind, active controlled, pharmacokinetic, safety and efficacy study, with a 12-week open-label extension. celecoxib has not been studied in patients under the age of 2 years, in patients with body weight less than 10 kg (22 lbs), and in patients with active systemic features. patients with systemic onset jra (without active systemic features) appear to be at risk for the development of abnormal coagulation laboratory tests. in some patients with systemic onset jra, both celecoxib and naproxen were associated with mild prolongation of activated partial thromboplastin time (aptt) but not prothrombin time (pt). when nsaids including celecoxib are used in patients with systemic onset jra, monitor patients for signs and symptoms of abnormal clotting or bleeding, due to the risk of disseminated intravascular coagulation. patients with systemic onset jra should be monitored for the development of abnormal coagulation tests [ see dosage and administration ( 2.4), warnings and precautions ( 5.15), adverse reactions ( 6.1), animal toxicology ( 13.2), clinical studies ( 14.3) ]. alternative therapies for treatment of jra should be considered in pediatric patients identified to be cyp2c9 poor metabolizers [ see poor metabolizers of cyp2c9 substrates ( 8.8) ]. elderly patients, compared to younger patients, are at greater risk for nsaid-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. if the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [ see warnings and precautions ( 5.1, 5.2,  5.3,5.6, 5.14) ]. of the total number of patients who received celecoxib capsules in pre-approval clinical trials, more than 3,300 were 65-74 years of age, while approximately 1,300 additional patients were 75 years and over. no substantial differences in effectiveness were observed between these subjects and younger subjects. in clinical studies comparing renal function as measured by the gfr, bun and creatinine, and platelet function as measured by bleeding time and platelet aggregation, the results were not different between elderly and young volunteers. however, as with other nsaids, including those that selectively inhibit cox-2, there have been more spontaneous post-marketing reports of fatal gi events and acute renal failure in the elderly than in younger patients [ see warnings and precautions ( 5.2, 5.6) ]. the daily recommended dose of celecoxib capsules in patients with moderate hepatic impairment (child-pugh class b) should be reduced by 50%. the use of celecoxib capsules in patients with severe hepatic impairment is not recommended [ see dosage and administration ( 2.7) and clinical pharmacology ( 12.3) ]. celecoxib capsules are not recommended in patients with severe renal insufficiency [ see warnings and precautions ( 5.6) and clinical pharmacology ( 12.3) ]. in patients who are known or suspected to be poor cyp2c9 metabolizers (i.e., cyp2c9*3/*3), based on genotype or previous history/experience with other cyp2c9 substrates (such as warfarin, phenytoin) administer celecoxib capsules starting with half the lowest recommended dose. alternative management should be considered in jra patients identified to be cyp2c9 poor metabolizers [ see dosage and administration ( 2.7) and clinical pharmacology ( 12.5) ].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - gabapentin (unii: 6cw7f3g59x) (gabapentin - unii:6cw7f3g59x) - gabapentin is indicated for: - management of postherpetic neuralgia in adults - adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy gabapentin is contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antiepileptic drugs (aeds), such as gabapentin, during pregnancy. encourage women who are taking gabapentin during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry by calling the toll free number 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/. risk summary there are no adequate data on the developmental risks associated with the use of gabapentin in pregnant women. in nonclinical studies in mice, rats, and rabbits, gabapentin was developmentally toxic (increased fetal skeletal and visceral abnormalities, and increased embryofetal mortality) when administered to pregnant animals at doses similar to or lower than those used clinically [see data] . in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. the background risk of major birth defects and miscarriage for the indicated population is unknown. data animal data when pregnant mice received oral doses of gabapentin (500 mg/kg/day, 1,000 mg/kg/day, or 3,000 mg/kg/day) during the period of organogenesis, embryofetal toxicity (increased incidences of skeletal variations) was observed at the two highest doses. the no-effect dose for embryofetal developmental toxicity in mice (500 mg/kg/day) is less than the maximum recommended human dose (mrhd) of 3,600 mg/kg on a body surface area (mg/m 2 ) basis. in studies in which rats received oral doses of gabapentin (500 mg/kg/day to 2,000 mg/kg/day) during pregnancy, adverse effect on offspring development (increased incidences of hydroureter and/or hydronephrosis) were observed at all doses. the lowest dose tested is similar to the mrhd on a mg/m 2 basis. when pregnant rabbits were treated with gabapentin during the period of organogenesis, an increase in embryofetal mortality was observed at all doses tested (60 mg/kg, 300 mg/kg, or 1,500 mg/kg). the lowest dose tested is less than the mrhd on a mg/m 2 basis. in a published study, gabapentin (400 mg/kg/day) was administered by intraperitoneal injection to neonatal mice during the first postnatal week, a period of synaptogenesis in rodents (corresponding to the last trimester of pregnancy in humans). gabapentin caused a marked decrease in neuronal synapse formation in brains of intact mice and abnormal neuronal synapse formation in a mouse model of synaptic repair. gabapentin has been shown in vitro to interfere with activity of the α2δ subunit of voltage-activated calcium channels, a receptor involved in neuronal synaptogenesis. the clinical significance of these findings is unknown. risk summary gabapentin is secreted in human milk following oral administration. the effects on the breastfed infant and on milk production are unknown. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for gabapentin and any potential adverse effects on the breastfed infant from gabapentin or from the underlying maternal condition. safety and effectiveness of gabapentin in the management of postherpetic neuralgia in pediatric patients have not been established. safety and effectiveness as adjunctive therapy in the treatment of partial seizures in pediatric patients below the age of 3 years has not been established [see clinical studies (14.2)] . the total number of patients treated with gabapentin in controlled clinical trials in patients with postherpetic neuralgia was 336, of which 102 (30%) were 65 to 74 years of age, and 168 (50%) were 75 years of age and older. there was a larger treatment effect in patients 75 years of age and older compared to younger patients who received the same dosage. since gabapentin is almost exclusively eliminated by renal excretion, the larger treatment effect observed in patients ≥75 years may be a consequence of increased gabapentin exposure for a given dose that results from an age-related decrease in renal function. however, other factors cannot be excluded. the types and incidence of adverse reactions were similar across age groups except for peripheral edema and ataxia, which tended to increase in incidence with age. clinical studies of gabapentin in epilepsy did not include sufficient numbers of subjects aged 65 and over to determine whether they responded differently from younger subjects. other reported clinical experience has not identified differences in responses between the elderly and younger patients. in general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. this drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and dose should be adjusted based on creatinine clearance values in these patients [see dosage and administration (2.4), adverse reactions (6), and clinical pharmacology (12.3)] . dosage adjustment in adult patients with compromised renal function is necessary [see dosage and administration (2.3)and clinical pharmacology (12.3)] . pediatric patients with renal insufficiency have not been studied. dosage adjustment in patients undergoing hemodialysis is necessary [see dosage and administration (2.3)and clinical pharmacology (12.3)] . gabapentin is not a scheduled drug. abuse is the intentional, non-therapeutic use of a drug, even once, for its desirable psychological or physiological effects. misuse is the intentional use, for therapeutic purposes, of a drug by an individual in a way other than prescribed by a health care provider or for whom it was not prescribed. gabapentin does not exhibit affinity for benzodiazepine, opioid (mu, delta or kappa), or cannabinoid 1 receptor sites. gabapentin misuse and abuse have been reported in the postmarketing setting and published literature. most of the individuals described in these reports had a history of polysubstance abuse. some of these individuals were taking higher than recommended doses of gabapentin for unapproved uses. when prescribing gabapentin, carefully evaluate patients for a history of drug abuse and observe them for signs and symptoms of gabapentin misuse or abuse (e.g., self-dose escalation and drug-seeking behavior). the abuse potential of gabapentin has not been evaluated in human studies. physical dependence is a state that develops as a result of physiological adaptation in response to repeated drug use, manifested by withdrawal signs and symptoms after abrupt discontinuation or a significant dose reduction of a drug. there are rare postmarketing reports of individuals experiencing withdrawal symptoms shortly after discontinuing higher than recommended doses of gabapentin used to treat illnesses for which the drug is not approved. such symptoms included agitation, disorientation and confusion after suddenly discontinuing gabapentin that resolved after restarting gabapentin. the dependence potential of gabapentin has not been evaluated in human studies.

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - celecoxib (unii: jcx84q7j1l) (celecoxib - unii:jcx84q7j1l) - celecoxib is indicated for the management of the signs and symptoms of oa [ see clinical studies (14.1) ]. for the management of the signs and symptoms of ra [ see clinical studies (14.2) ]. for the management of the signs and symptoms of jra in patients 2 years and older [ see clinical studies (14.3) ]. for the management of the signs and symptoms of as [ see clinical studies (14.4) ]. for the management of acute pain in adults [ see clinical studies (14.5) ]. for the management of primary dysmenorrhea [ see clinical studies (14.5) ]. celecoxib is contraindicated in the following patients: - known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to celecoxib, any components of the drug product [see  warnings and precautions (5.7,  5.9)]. - history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other nsaids. severe, sometimes fatal, anaphylactic reactions to nsaids, have been reported in such patients [see warnings and precautions (5.7, 5.8)]. - in the setting of cabg surgery [see warnings and precautions (5.1)]. - in patients who have demonstrated allergic-type reactions to sulfonamides [see warnings and precautions (5.7)]. risk summary use of nsaids, including celecoxib, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. because of these risks, limit dose and duration of celecoxib use between about 20 and 30 weeks of gestation and avoid celecoxib use at about 30 weeks of gestation and later in pregnancy ( see clinical considerations, data ). premature closure of fetal ductus arteriosus use of nsaids, including celecoxib, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment use of nsaids at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. data from observational studies regarding other potential embryofetal risks of nsaid use in women in the first or second trimesters of pregnancy are inconclusive. in animal reproduction studies, embryo-fetal deaths and an increase in diaphragmatic hernias were observed in rats administered celecoxib daily during the period of organogenesis at oral doses approximately 6 times the maximum recommended human dose (mrhd) of 200 mg twice daily. in addition, structural abnormalities (e.g., septal defects, ribs fused, sternebrae fused and sternebrae misshapen) were observed in rabbits given daily oral doses of celecoxib during the period of organogenesis at approximately 2 times the mrhd ( see data ). based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. in animal studies, administration of prostaglandin synthesis inhibitors such as celecoxib, resulted in increased pre- and post- implantation loss. prostaglandins also have been shown to have an important role in fetal kidney development. in published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. all pregnancies have a background risk of birth defect, loss, or other adverse outcomes. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations fetal/neonatal adverse reactions premature closure of fetal ductus arteriosus: avoid use of nsaids in women at about 30 weeks gestation and later in pregnancy, because nsaids, including celecoxib, can cause premature closure of the fetal ductus arteriosus ( see data ). oligohydramnios/neonatal renal impairment: if an nsaid is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible. if celecoxib treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. if oligohydramnios occurs, discontinue celecoxib and follow up according to clinical practice ( see data ). labor or delivery there are no studies on the effects of celecoxib during labor or delivery. in animal studies, nsaids, including celecoxib, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. data human data the available data do not establish the presence or absence of developmental toxicity related to the use of celecoxib. premature closure of fetal ductus arteriosus: published literature reports that the use of nsaids at about 30 weeks of gestation and later in pregnancy may cause premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment: published studies and postmarketing reports describe maternal nsaid use at about 20 weeks gestation or later in pregnancy associated with fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. these adverse outcomes are seen, on average, after days to weeks of treatment, although oligohydramnios has been infrequently reported as soon as 48 hours after nsaid initiation. in many cases, but not all, the decrease in amniotic fluid was transient and reversible with cessation of the drug. there have been a limited number of case reports of maternal nsaid use and neonatal renal dysfunction without oligohydramnios, some of which were irreversible. some cases of neonatal renal dysfunction required treatment with invasive procedures, such as exchange transfusion or dialysis. methodological limitations of these postmarketing studies and reports include lack of a control group; limited information regarding dose, duration, and timing of drug exposure; and concomitant use of other medications. these limitations preclude establishing a reliable estimate of the risk of adverse fetal and neonatal outcomes with maternal nsaid use. because the published safety data on neonatal outcomes involved mostly preterm infants, the generalizability of certain reported risks to the full-term infant exposed to nsaids through maternal use is uncertain. animal data celecoxib at oral doses ≥150 mg/kg/day (approximately 2 times the human exposure at 200 mg twice daily as measured by auc 0 to 24 ), caused an increased incidence of ventricular septal defects, a rare event, and fetal alterations, such as ribs fused, sternebrae fused and sternebrae misshapen when rabbits were treated throughout organogenesis. a dose-dependent increase in diaphragmatic hernias was observed when rats were given celecoxib at oral doses ≥30 mg/kg/day (approximately 6 times human exposure based on the auc 0 to 24 at 200 mg twice daily for ra) throughout organogenesis. in rats, exposure to celecoxib during early embryonic development resulted in pre-implantation and post-implantation losses at oral doses ≥50 mg/kg/day (approximately 6 times human exposure based on the auc 0 to 24 at 200 mg twice daily for ra). celecoxib produced no evidence of delayed labor or parturition at oral doses up to 100 mg/kg in rats (approximately 7-fold human exposure as measured by the auc 0 to 24 at 200 mg twice daily). the effects of celecoxib on labor and delivery in pregnant women are unknown. risk summary   limited data from 3 published reports that included a total of 12 breastfeeding women showed low levels of celecoxib in breast milk. the calculated average daily infant dose was 10 to 40 mcg/kg/day, less than 1% of the weight-based therapeutic dose for a two-year old-child. a report of two breastfed infants 17 and 22 months of age did not show any adverse events. caution should be exercised when celecoxib is administered to a nursing woman. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for celecoxib and any potential adverse effects on the breastfed infant from the celecoxib or from the underlying maternal condition. infertility females based on the mechanism of action, the use of prostaglandin-mediated nsaids, including celecoxib, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin mediated follicular rupture required for ovulation. small studies in women treated with nsaids have also shown a reversible delay in ovulation. consider withdrawal of nsaids, including celecoxib, in women who have difficulties conceiving or who are undergoing investigation of infertility. celecoxib is approved for relief of the signs and symptoms of juvenile rheumatoid arthritis in patients 2 years and older. safety and efficacy have not been studied beyond six months in children. the long-term cardiovascular toxicity in children exposed to celecoxib has not been evaluated and it is unknown if long-term risks may be similar to that seen in adults exposed to celecoxib or other cox-2 selective and non- selective nsaids [see boxed warning, warnings and precautions (5.5), and clinical studies (14.3)]. the use of celecoxib in patients 2 years to 17 years of age with pauciarticular, polyarticular course jra or in patients with systemic onset jra was studied in a 12-week, double-blind, active controlled, pharmacokinetic, safety and efficacy study, with a 12-week open-label extension. celecoxib has not been studied in patients under the age of 2 years, in patients with body weight less than 10 kg (22 lbs), and in patients with active systemic features. patients with systemic onset jra (without active systemic features) appear to be at risk for the development of abnormal coagulation laboratory tests. in some patients with systemic onset jra, both celecoxib and naproxen were associated with mild prolongation of activated partial thromboplastin time (aptt) but not prothrombin time (pt). when nsaids including celecoxib are used in patients with systemic onset jra, monitor patients for signs and symptoms of abnormal clotting or bleeding, due to the risk of disseminated intravascular coagulation. patients with systemic onset jra should be monitored for the development of abnormal coagulation tests [see dosage and administration (2.4), warnings and precautions (5.15), adverse reactions (6.1), animal toxicology (13.2), clinical studies (14.3)]. alternative therapies for treatment of jra should be considered in pediatric patients identified to be cyp2c9 poor metabolizers [see poor metabolizers of cyp2c9 substrates (8.8)]. elderly patients, compared to younger patients, are at greater risk for nsaid-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. if the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [see warnings and precautions (5.1, 5.2, 5.3, 5.6, 5.14)]. of the total number of patients who received celecoxib in pre-approval clinical trials, more than 3,300 were 65 to 74 years of age, while approximately 1,300 additional patients were 75 years and over. no substantial differences in effectiveness were observed between these subjects and younger subjects. in clinical studies comparing renal function as measured by the gfr, bun and creatinine, and platelet function as measured by bleeding time and platelet aggregation, the results were not different between elderly and young volunteers. however, as with other nsaids, including those that selectively inhibit cox-2, there have been more spontaneous post-marketing reports of fatal gi events and acute renal failure in the elderly than in younger patients [see warnings and precautions (5.2, 5.6)]. the daily recommended dose of celecoxib capsules in patients with moderate hepatic impairment (child-pugh class b) should be reduced by 50%. the use of celecoxib in patients with severe hepatic impairment is not recommended [see  dosage and administration (2.7) and clinical pharmacology (12.3)]. celecoxib is not recommended in patients with severe renal insufficiency [ see  warnings and precautions (5.6) and clinical pharmacology (12.3) ]. in patients who are known or suspected to be poor cyp2c9 metabolizers (i.e., cyp2c9*3/*3), based on genotype or previous history/experience with other cyp2c9 substrates (such as warfarin, phenytoin) administer celecoxib starting with half the lowest recommended dose. alternative management should be considered in jra patients identified to be cyp2c9 poor metabolizers [see  dosage and administration (2.7) and clinical pharmacology (12.5)].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - bupropion hydrochloride (unii: zg7e5poy8o) (bupropion - unii:01zg3tpx31) - bupropion hydrochloride tablets are indicated for the treatment of major depressive disorder (mdd), as defined by the diagnostic and statistical manual (dsm). the efficacy of bupropion hydrochloride tablets in the treatment of a major depressive episode was established in two 4-week controlled inpatient trials and one 6-week controlled outpatient trial of adult subjects with mdd [see clinical studies ( 14)]. - bupropion hydrochloride tablets are contraindicated in patients with a seizure disorder. - bupropion hydrochloride tablets are contraindicated in patients with a current or prior diagnosis of bulimia or anorexia nervosa as a higher incidence of seizures was observed in such patients treated with bupropion hydrochloride tablets [see warnings and precautions ( 5.3)]. - bupropion hydrochloride tablets are contraindicated in patients undergoing abrupt discontinuation of alcohol, benzodiazepines, barbiturates, and antiepileptic drugs [see warnings and precautions ( 5.3), drug interactions ( 7.3)]. - the use of maois (intended to treat psychiatric disorders) concomitantly with bupropion hydrochloride tablets or within 14 days of discontinuing treatment with bupropion hydrochloride tablets is contraindicated. there is an increased risk of hypertensive reactions when bupropion hydrochloride tablets are used concomitantly with maois. the use of bupropion hydrochloride tablets within 14 days of discontinuing treatment with an maoi is also contraindicated. starting bupropion hydrochloride tablets in a patient treated with reversible maois such as linezolid or intravenous methylene blue is contraindicated [see dosage and administration ( 2.4, 2.5), warnings and precautions ( 5.4), drug interactions ( 7.6)]. - bupropion hydrochloride tablets are contraindicated in patients with known hypersensitivity to bupropion or other ingredients of bupropion hydrochloride tablets. anaphylactoid/anaphylactic reactions and stevens-johnson syndrome have been reported [see warnings and precautions ( 5.8)]. pregnancy exposure registry there is an independent pregnancy exposure registry that monitors pregnancy outcomes in women exposed to any antidepressants during pregnancy. healthcare providers are encouraged to register patients by calling the national pregnancy registry for antidepressants at 1-844-405-6185 or visiting online at   https://womensmentalhealth.org/research /pregnancyregistry/antidepressants/. risk summary data from epidemiological studies of pregnant women exposed to bupropion in the first trimester have not identified an increased risk of congenital malformations overall ( see data ). there are risks to the mother associated with untreated depression in pregnancy ( see clinical considerations ). when bupropion was administered to pregnant rats during organogenesis, there was no evidence of fetal malformations at doses up to approximately 10 times the maximum recommended human dose (mrhd) of 450 mg/day. when given to pregnant rabbits during organogenesis, non-dose–related increases in incidence of fetal malformations and skeletal variations were observed at doses approximately equal to the mrhd and greater. decreased fetal weights were seen at doses twice the mrhd and greater ( see animal data ). the estimated background risk for major birth defects and miscarriage is unknown for the indicated population. all pregnancies have a background risk of birth defect, loss, or other adverse outcomes. in the u.s. general population, the estimated background risk of major birth defects and of miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations disease-associated maternal and/or embryo/fetal risk: a prospective, longitudinal study followed 201 pregnant women with a history of major depressive disorder who were euthymic and taking antidepressants during pregnancy at the beginning of pregnancy. the women who discontinued antidepressants during pregnancy were more likely to experience a relapse of major depression than women who continued antidepressants. consider the risks to the mother of untreated depression and potential effects on the fetus when discontinuing or changing treatment with antidepressant medications during pregnancy and postpartum. data human data: data from the international bupropion pregnancy registry (675 first trimester exposures) and a retrospective cohort study using the united healthcare database (1,213 first trimester exposures) did not show an increased risk for malformations overall. the registry was not designed or powered to evaluate specific defects but suggested a possible increase in cardiac malformations. no increased risk for cardiovascular malformations overall has been observed after bupropion exposure during the first trimester. the prospectively observed rate of cardiovascular malformations in pregnancies with exposure to bupropion in the first trimester from the international pregnancy registry was 1.3% (9 cardiovascular malformations/675 first trimester maternal bupropion exposures), which is similar to the background rate of cardiovascular malformations (approximately 1%). data from the united healthcare database, which had a limited number of exposed cases with cardiovascular malformations, and a case-control study (6,853 infants with cardiovascular malformations and 5,763 with non-cardiovascular malformations) of self-reported bupropion use from the national birth defects prevention study (nbdps) did not show an increased risk for cardiovascular malformations overall after bupropion exposure during the first trimester. study findings on bupropion exposure during the first trimester and risk for left ventricular outflow tract obstruction (lvoto) are inconsistent and do not allow conclusions regarding a possible association. the united healthcare database lacked sufficient power to evaluate this association; the nbdps found increased risk for lvoto (n = 10; adjusted or = 2.6; 95% ci: 1.2, 5.7), and the slone epidemiology case control study did not find increased risk for lvoto. study findings on bupropion exposure during the first trimester and risk for ventricular septal defect (vsd) are inconsistent and do not allow conclusions regarding a possible association. the slone epidemiology study found an increased risk for vsd following first trimester maternal bupropion exposure (n = 17; adjusted or = 2.5; 95% ci: 1.3, 5.0) but did not find increased risk for any other cardiovascular malformations studied (including lvoto as above). the nbdps and united healthcare database study did not find an association between first trimester maternal bupropion exposure and vsd. for the findings of lvoto and vsd, the studies were limited by the small number of exposed cases, inconsistent findings among studies, and the potential for chance findings from multiple comparisons in case control studies. animal data: in studies conducted in pregnant rats and rabbits, bupropion was administered orally during the period of organogenesis at doses of up to 450 and 150 mg/kg/day, respectively (approximately 10 and 6 times the mrhd, respectively, on a mg/m 2  basis). there was no evidence of fetal malformations in rats. when given to pregnant rabbits during organogenesis, non-dose–related increases in incidence of fetal malformations and skeletal variations were observed at the lowest dose tested (25 mg/kg/day, approximately equal to the mrhd on a mg/m 2 basis) and greater. decreased fetal weights were observed at doses of 50 mg/kg/day (approximately 2 times the mrhd on a mg/m 2 basis) and greater. no maternal toxicity was evident at doses of 50 mg/kg/day or less. in a pre- and postnatal development study, bupropion administered orally to pregnant rats at doses of up to 150 mg/kg/day (approximately 3 times the mrhd on a mg/m 2 basis) from embryonic implantation through lactation had no effect on pup growth or development. risk summary data from published literature report the presence of bupropion and its metabolites in human milk (see data) . there are no data on the effects of bupropion or its metabolites on milk production. limited data from postmarketing reports have not identified a clear association of adverse reactions in the breastfed infant. the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for bupropion hydrochloride tablets and any potential adverse effects on the breastfed child from bupropion hydrochloride tablets or from the underlying maternal condition. data in a lactation study of 10 women, levels of orally dosed bupropion and its active metabolites were measured in expressed milk. the average daily infant exposure (assuming 150 ml/kg daily consumption) to bupropion and its active metabolites was 2% of the maternal weight-adjusted dose. postmarketing reports have described seizures in breastfed infants. the relationship of bupropion exposure and these seizures is unclear. safety and effectiveness in the pediatric population have not been established [see boxed warning, warnings and precautions ( 5.1)]. of the approximately 6,000 subjects who participated in clinical trials with bupropion sustained-release tablets (depression and smoking cessation trials), 275 were aged ≥65 years and 47 were aged ≥75 years. in addition, several hundred subjects aged ≥65 years participated in clinical trials using the immediate-release formulation of bupropion (depression trials). no overall differences in safety or effectiveness were observed between these subjects and younger subjects. reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. bupropion is extensively metabolized in the liver to active metabolites, which are further metabolized and excreted by the kidneys. the risk of adverse reactions may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, it may be necessary to consider this factor in dose selection; it may be useful to monitor renal function [see dosage and administration ( 2.3), use in specific populations ( 8.6), clinical pharmacology ( 12.3)]. consider a reduced dose and/or dosing frequency of bupropion hydrochloride tablets in patients with renal impairment (gfr less than 90 ml/min). bupropion and its metabolites are cleared renally and may accumulate in such patients to a greater extent than usual. monitor closely for adverse reactions that could indicate high bupropion or metabolite exposures [see dosage and administration ( 2.3), clinical pharmacology ( 12.3)]. in patients with moderate to severe hepatic impairment (child-pugh score: 7 to 15), the maximum dose of bupropion hydrochloride tablets is 75 mg daily. in patients with mild hepatic impairment (child-pugh score: 5 to 6), consider reducing the dose and/or frequency of dosing [see dosage and administration ( 2.2), clinical pharmacology ( 12.3)]. bupropion is not a controlled substance. humans controlled clinical trials conducted in normal volunteers, in subjects with a history of multiple drug abuse, and in depressed subjects showed some increase in motor activity and agitation/excitement, often typical of central stimulant activity. in a population of individuals experienced with drugs of abuse, a single oral dose of 400 mg of bupropion produced mild amphetamine-like activity as compared with placebo on the morphine-benzedrine subscale of the addiction research center inventories (arci) and a score greater than placebo but less than 15 mg of the schedule ii stimulant dextroamphetamine on the liking scale of the arci. these scales measure general feelings of euphoria and drug liking which are often associated with abuse potential. findings in clinical trials, however, are not known to reliably predict the abuse potential of drugs. nonetheless, evidence from single-dose trials does suggest that the recommended daily dosage of bupropion when administered orally in divided doses is not likely to be significantly reinforcing to amphetamine or cns stimulant abusers. however, higher doses (which could not be tested because of the risk of seizure) might be modestly attractive to those who abuse cns stimulant drugs. bupropion hydrochloride tablets are intended for oral use only. the inhalation of crushed tablets or injection of dissolved bupropion has been reported. seizures and/or cases of death have been reported when bupropion has been administered intranasally or by parenteral injection. animals studies in rodents and primates demonstrated that bupropion exhibits some pharmacologic actions common to psychostimulants. in rodents, it has been shown to increase locomotor activity, elicit a mild stereotyped behavior response, and increase rates of responding in several schedule-controlled behavior paradigms. in primate models assessing the positive-reinforcing effects of psychoactive drugs, bupropion was self-administered intravenously. in rats, bupropion produced amphetamine-like and cocaine-like discriminative stimulus effects in drug discrimination paradigms used to characterize the subjective effects of psychoactive drugs.

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - indomethacin (unii: xxe1cet956) (indomethacin - unii:xxe1cet956) - indomethacin capsules are indicated for: - moderate to severe rheumatoid arthritis including acute flares of chronic disease - moderate to severe ankylosing spondylitis - moderate to severe osteoarthritis - acute painful shoulder (bursitis and/or tendinitis) - acute gouty arthritis indomethacin capsules are contraindicated in the following patients: - known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to indomethacin or any components of the drug product [see warnings and precautions ( 5.7, 5.9)] . - history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other nsaids. severe, sometimes fatal, anaphylactic reactions to nsaids have been reported in such patients [see warnings and precautions ( 5.7, 5.8)] . - in the setting of coronary artery bypass graft (cabg) surgery [see warnings and precautions ( 5.1)]. risk summary use of nsaids, including indomethacin capsules, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. because of these risks, limit dose and duration of indomethacin capsules use between about 20 and 30 weeks of gestation, and avoid indomethacin capsules use at about 30 weeks of gestation and later in pregnancy ( see clinical considerations, data ). premature closure of fetal ductus arteriosus use of nsaids, including indomethacin capsules, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment use of nsaids at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. data from observational studies regarding other potential embryofetal risks of nsaid use in women in the first or second trimesters of pregnancy are inconclusive. in animal reproduction studies retarded fetal ossification was observed with administration of indomethacin to mice and rats during organogenesis at doses 0.1 and 0.2 times, respectively, the maximum recommended human dose (mrhd, 200 mg). in published studies in pregnant mice, indomethacin produced maternal toxicity and death, increased fetal resorptions, and fetal malformations at 0.1 times the mrhd. when rat and mice dams were dosed during the last three days of gestation, indomethacin produced neuronal necrosis in the offspring at 0.1 and 0.05 times the mrhd, respectively [see data ]. based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. in animal studies, administration of prostaglandin synthesis inhibitors such as indomethacin, resulted in increased pre- and post-implantation loss. prostaglandins also have been shown to have an important role in fetal kidney development. in published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. the estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown. all pregnancies have a background risk of birth defect, loss, or other adverse outcomes. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. clinical considerations fetal/neonatal adverse reactions premature closure of fetal ductus arteriosus: avoid use of nsaids in women at about 30 weeks gestation and later in pregnancy, because nsaids, including indomethacin capsules, can cause premature closure of the fetal ductus arteriosus ( see data ). oligohydramnios/neonatal renal impairment if an nsaid is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible. if indomethacin capsules treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. if oligohydramnios occurs, discontinue indomethacin capsules and follow up according to clinical practice ( see data ). labor or delivery there are no studies on the effects of indomethacin capsules during labor or delivery. in animal studies, nsaids, including indomethacin, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. data human data premature closure of fetal ductus arteriosus: published literature reports that the use of nsaids at about 30 weeks of gestation and later in pregnancy may cause premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment: published studies and postmarketing reports describe maternal nsaid use at about 20 weeks gestation or later in pregnancy associated with fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. these adverse outcomes are seen, on average, after days to weeks of treatment, although oligohydramnios has been infrequently reported as soon as 48 hours after nsaid initiation. in many cases, but not all, the decrease in amniotic fluid was transient and reversible with cessation of the drug. there have been a limited number of case reports of maternal nsaid use and neonatal renal dysfunction without oligohydramnios, some of which were irreversible. some cases of neonatal renal dysfunction required treatment with invasive procedures, such as exchange transfusion or dialysis. methodological limitations of these postmarketing studies and reports include lack of a control group; limited information regarding dose, duration, and timing of drug exposure; and concomitant use of other medications. these limitations preclude establishing a reliable estimate of the risk of adverse fetal and neonatal outcomes with maternal nsaid use. because the published safety data on neonatal outcomes involved mostly preterm infants, the generalizability of certain reported risks to the full-term infant exposed to nsaids through maternal use is uncertain. animal data reproductive studies were conducted in mice and rats at dosages of 0.5, 1, 2, and 4 mg/kg/day. except for retarded fetal ossification at 4 mg/kg/day (0.1 times [mice] and 0.2 times [rats] the mrhd on a mg/m 2 basis, respectively) considered secondary to the decreased average fetal weights, no increase in fetal malformations was observed as compared with control groups. other studies in mice reported in the literature using higher doses (5 to 15 mg/kg/day, 0.1 to 0.4 times mrhd on a mg/m 2 basis) have described maternal toxicity and death, increased fetal resorptions, and fetal malformations. in rats and mice, maternal indomethacin administration of 4 mg/kg/day (0.2 times and 0.1 times the mrhd on a mg/m 2 basis) during the last 3 days of gestation was associated with an increased incidence of neuronal necrosis in the diencephalon in the live-born fetuses however no increase in neuronal necrosis was observed at 2 mg/kg/day as compared to the control groups (0.1 times and 0.05 times the mrhd on a mg/m 2 basis). administration of 0.5 or 4 mg/kg/day to offspring during the first 3 days of life did not cause an increase in neuronal necrosis at either dose level. risk summary based on available published clinical data, indomethacin may be present in human milk. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for indomethacin capsules and any potential adverse effects on the breastfed infant from the indomethacin capsules or from the underlying maternal condition. data in one study, levels of indomethacin in breast milk were below the sensitivity of the assay (<20 mcg/l) in 11 of 15 women using doses ranging from 75 mg orally to 300 mg rectally daily (0.94 to 4.29 mg/kg daily) in the postpartum period. based on these levels, the average concentration present in breast milk was estimated to be 0.27% of the maternal weight-adjusted dose. in another study indomethacin levels were measured in breast milk of eight postpartum women using doses of 75 mg daily and the results were used to calculate an estimated infant daily dose. the estimated infant dose of indomethacin from breast milk was less than 30 mcg/day or 4.5 mcg/kg/day assuming breast milk intake of 150 ml/kg/day. this is 0.5% of the maternal weight-adjusted dosage or about 3% of the neonatal dose for treatment of patent ductus arteriosus. infertility females based on the mechanism of action, the use of prostaglandin-mediated nsaids, including indomethacin capsules, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin-mediated follicular rupture required for ovulation. small studies in women treated with nsaids have also shown a reversible delay in ovulation. consider withdrawal of nsaids, including indomethacin capsules, in women who have difficulties conceiving or who are undergoing investigation of infertility. safety and effectiveness in pediatric patients 14 years of age and younger has not been established. indomethacin capsules should not be prescribed for pediatric patients 14 years of age and younger unless toxicity or lack of efficacy associated with other drugs warrants the risk. in experience with more than 900 pediatric patients reported in the literature or to the manufacturer who were treated with indomethacin capsules, side effects in pediatric patients were comparable to those reported in adults. experience in pediatric patients has been confined to the use of indomethacin capsules. if a decision is made to use indomethacin for pediatric patients two years of age or older, such patients should be monitored closely and periodic assessment of liver function is recommended. there have been cases of hepatotoxicity reported in pediatric patients with juvenile rheumatoid arthritis, including fatalities. if indomethacin treatment is instituted, a suggested starting dose is 1 to 2 mg/kg/day given in divided doses. maximum daily dosage should not exceed 3 mg/kg/day or 150 to 200 mg/day, whichever is less. limited data are available to support the use of a maximum daily dosage of 4 mg/kg/day or 150 to 200 mg/day, whichever is less. as symptoms subside, the total daily dosage should be reduced to the lowest level required to control symptoms, or the drug should be discontinued. elderly patients, compared to younger patients, are at greater risk for nsaid-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. if the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [ see warnings and precautions (5.1, 5.2, 5.3, 5.6, 5.14) ]. indomethacin may cause confusion or rarely, psychosis [ see adverse reactions (6.1)]; physicians should remain alert to the possibility of such adverse effects in the elderly. indomethacin and its metabolites are known to be substantially excreted by the kidneys, and the risk of adverse reactions to this drug may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, use caution in this patient population, and it may be useful to monitor renal function [ see clinical pharmacology (12.3) ].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - indomethacin (unii: xxe1cet956) (indomethacin - unii:xxe1cet956) - indomethacin capsules are indicated for: - moderate to severe rheumatoid arthritis including acute flares of chronic disease - moderate to severe ankylosing spondylitis - moderate to severe osteoarthritis - acute painful shoulder (bursitis and/or tendinitis) - acute gouty arthritis indomethacin capsules are contraindicated in the following patients: - known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to indomethacin or any components of the drug product [see warnings and precautions ( 5.7, 5.9)] . - history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other nsaids. severe, sometimes fatal, anaphylactic reactions to nsaids have been reported in such patients [see warnings and precautions ( 5.7, 5.8)] . - in the setting of coronary artery bypass graft (cabg) surgery [see warnings and precautions ( 5.1)]. risk summary use of nsaids, including indomethacin capsules, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. because of these risks, limit dose and duration of indomethacin capsules use between about 20 and 30 weeks of gestation, and avoid indomethacin capsules use at about 30 weeks of gestation and later in pregnancy ( see clinical considerations, data ). premature closure of fetal ductus arteriosus use of nsaids, including indomethacin capsules, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment use of nsaids at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. data from observational studies regarding other potential embryofetal risks of nsaid use in women in the first or second trimesters of pregnancy are inconclusive. in animal reproduction studies retarded fetal ossification was observed with administration of indomethacin to mice and rats during organogenesis at doses 0.1 and 0.2 times, respectively, the maximum recommended human dose (mrhd, 200 mg). in published studies in pregnant mice, indomethacin produced maternal toxicity and death, increased fetal resorptions, and fetal malformations at 0.1 times the mrhd. when rat and mice dams were dosed during the last three days of gestation, indomethacin produced neuronal necrosis in the offspring at 0.1 and 0.05 times the mrhd, respectively [see data ]. based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. in animal studies, administration of prostaglandin synthesis inhibitors such as indomethacin, resulted in increased pre- and post-implantation loss. prostaglandins also have been shown to have an important role in fetal kidney development. in published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. the estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown. all pregnancies have a background risk of birth defect, loss, or other adverse outcomes. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. clinical considerations fetal/neonatal adverse reactions premature closure of fetal ductus arteriosus: avoid use of nsaids in women at about 30 weeks gestation and later in pregnancy, because nsaids, including indomethacin capsules, can cause premature closure of the fetal ductus arteriosus ( see data ). oligohydramnios/neonatal renal impairment if an nsaid is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible. if indomethacin capsules treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. if oligohydramnios occurs, discontinue indomethacin capsules and follow up according to clinical practice ( see data ). labor or delivery there are no studies on the effects of indomethacin capsules during labor or delivery. in animal studies, nsaids, including indomethacin, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. data human data premature closure of fetal ductus arteriosus: published literature reports that the use of nsaids at about 30 weeks of gestation and later in pregnancy may cause premature closure of the fetal ductus arteriosus. oligohydramnios/neonatal renal impairment: published studies and postmarketing reports describe maternal nsaid use at about 20 weeks gestation or later in pregnancy associated with fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. these adverse outcomes are seen, on average, after days to weeks of treatment, although oligohydramnios has been infrequently reported as soon as 48 hours after nsaid initiation. in many cases, but not all, the decrease in amniotic fluid was transient and reversible with cessation of the drug. there have been a limited number of case reports of maternal nsaid use and neonatal renal dysfunction without oligohydramnios, some of which were irreversible. some cases of neonatal renal dysfunction required treatment with invasive procedures, such as exchange transfusion or dialysis. methodological limitations of these postmarketing studies and reports include lack of a control group; limited information regarding dose, duration, and timing of drug exposure; and concomitant use of other medications. these limitations preclude establishing a reliable estimate of the risk of adverse fetal and neonatal outcomes with maternal nsaid use. because the published safety data on neonatal outcomes involved mostly preterm infants, the generalizability of certain reported risks to the full-term infant exposed to nsaids through maternal use is uncertain. animal data reproductive studies were conducted in mice and rats at dosages of 0.5, 1, 2, and 4 mg/kg/day. except for retarded fetal ossification at 4 mg/kg/day (0.1 times [mice] and 0.2 times [rats] the mrhd on a mg/m 2 basis, respectively) considered secondary to the decreased average fetal weights, no increase in fetal malformations was observed as compared with control groups. other studies in mice reported in the literature using higher doses (5 to 15 mg/kg/day, 0.1 to 0.4 times mrhd on a mg/m 2 basis) have described maternal toxicity and death, increased fetal resorptions, and fetal malformations. in rats and mice, maternal indomethacin administration of 4 mg/kg/day (0.2 times and 0.1 times the mrhd on a mg/m 2 basis) during the last 3 days of gestation was associated with an increased incidence of neuronal necrosis in the diencephalon in the live-born fetuses however no increase in neuronal necrosis was observed at 2 mg/kg/day as compared to the control groups (0.1 times and 0.05 times the mrhd on a mg/m 2 basis). administration of 0.5 or 4 mg/kg/day to offspring during the first 3 days of life did not cause an increase in neuronal necrosis at either dose level. risk summary based on available published clinical data, indomethacin may be present in human milk. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for indomethacin capsules and any potential adverse effects on the breastfed infant from the indomethacin capsules or from the underlying maternal condition. data in one study, levels of indomethacin in breast milk were below the sensitivity of the assay (<20 mcg/l) in 11 of 15 women using doses ranging from 75 mg orally to 300 mg rectally daily (0.94 to 4.29 mg/kg daily) in the postpartum period. based on these levels, the average concentration present in breast milk was estimated to be 0.27% of the maternal weight-adjusted dose. in another study indomethacin levels were measured in breast milk of eight postpartum women using doses of 75 mg daily and the results were used to calculate an estimated infant daily dose. the estimated infant dose of indomethacin from breast milk was less than 30 mcg/day or 4.5 mcg/kg/day assuming breast milk intake of 150 ml/kg/day. this is 0.5% of the maternal weight-adjusted dosage or about 3% of the neonatal dose for treatment of patent ductus arteriosus. infertility females based on the mechanism of action, the use of prostaglandin-mediated nsaids, including indomethacin capsules, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin-mediated follicular rupture required for ovulation. small studies in women treated with nsaids have also shown a reversible delay in ovulation. consider withdrawal of nsaids, including indomethacin capsules, in women who have difficulties conceiving or who are undergoing investigation of infertility. safety and effectiveness in pediatric patients 14 years of age and younger has not been established. indomethacin capsules should not be prescribed for pediatric patients 14 years of age and younger unless toxicity or lack of efficacy associated with other drugs warrants the risk. in experience with more than 900 pediatric patients reported in the literature or to the manufacturer who were treated with indomethacin capsules, side effects in pediatric patients were comparable to those reported in adults. experience in pediatric patients has been confined to the use of indomethacin capsules. if a decision is made to use indomethacin for pediatric patients two years of age or older, such patients should be monitored closely and periodic assessment of liver function is recommended. there have been cases of hepatotoxicity reported in pediatric patients with juvenile rheumatoid arthritis, including fatalities. if indomethacin treatment is instituted, a suggested starting dose is 1 to 2 mg/kg/day given in divided doses. maximum daily dosage should not exceed 3 mg/kg/day or 150 to 200 mg/day, whichever is less. limited data are available to support the use of a maximum daily dosage of 4 mg/kg/day or 150 to 200 mg/day, whichever is less. as symptoms subside, the total daily dosage should be reduced to the lowest level required to control symptoms, or the drug should be discontinued. elderly patients, compared to younger patients, are at greater risk for nsaid-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. if the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [ see warnings and precautions (5.1, 5.2, 5.3, 5.6, 5.14) ]. indomethacin may cause confusion or rarely, psychosis [ see adverse reactions (6.1)]; physicians should remain alert to the possibility of such adverse effects in the elderly. indomethacin and its metabolites are known to be substantially excreted by the kidneys, and the risk of adverse reactions to this drug may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, use caution in this patient population, and it may be useful to monitor renal function [ see clinical pharmacology (12.3) ].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - adjunctive therapy lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: - partial-onset seizures. - primary generalized tonic-clonic seizures (pgtc) seizures. - generalized seizures of lennox-gastaut syndrome. monotherapy lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (aed). safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from aeds other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant aeds. lamotrigine is indicated for the maintenance treatment of bipolar i disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in patients treated for acute mood episodes with standard therapy [see clinical studies ( 14.2)] .   limitations of use treatment of acute manic or mixed episodes is not recommended. effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. lamotrigine is contraindicated in patients who have demonstrated hypersensitivity (e.g., rash, angioedema, acute urticaria, extensive pruritus, mucosal ulceration) to the drug or its ingredients [see boxed warning, warnings and precautions   ( 5.1), ( 5.3)]. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including lamotrigine, during pregnancy. encourage women who are taking lamotrigine during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry by calling 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/. risk summary data from several prospective pregnancy exposure registries and epidemiological studies of pregnant women have not detected an increased frequency of major congenital malformations or a consistent pattern of malformations among women exposed to lamotrigine compared with the general population (see data) . the majority of lamotrigine pregnancy exposure data are from women with epilepsy. in animal studies, administration of lamotrigine during pregnancy resulted in developmental toxicity (increased mortality, decreased body weight, increased structural variation, neurobehavioral abnormalities) at doses lower than those administered clinically. lamotrigine decreased fetal folate concentrations in rats, an effect known to be associated with adverse pregnancy outcomes in animals and humans (see data) . the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations as with other aeds, physiological changes during pregnancy may affect lamotrigine concentrations and/or therapeutic effect. there have been reports of decreased lamotrigine concentrations during pregnancy and restoration of pre-pregnancy concentrations after delivery. dose adjustments may be necessary to maintain clinical response. data human data data from several international pregnancy registries have not shown an increased risk for malformations overall. the international lamotrigine pregnancy registry reported major congenital malformations in 2.2% (95% ci: 1.6%, 3.1%) of 1,558 infants exposed to lamotrigine monotherapy in the first trimester of pregnancy. the naaed pregnancy registry reported major congenital malformations among 2.0% of 1,562 infants exposed to lamotrigine monotherapy in the first trimester. eurap, a large international pregnancy registry focused outside of north america, reported major birth defects in 2.9% (95% ci: 2.3%, 3.7%) of 2,514 exposures to lamotrigine monotherapy in the first trimester. the frequency of major congenital malformations was similar to estimates from the general population. the naaed pregnancy registry observed an increased risk of isolated oral clefts: among 2,200 infants exposed to lamotrigine early in pregnancy, the risk of oral clefts was 3.2 per 1,000 (95% ci: 1.4, 6.3), a 3-fold increased risk versus unexposed healthy controls. this finding has not been observed in other large international pregnancy registries. furthermore, a case-control study based on 21 congenital anomaly registries covering over 10 million births in europe reported an adjusted odds ratio for isolated oral clefts with lamotrigine exposure of 1.45 (95% ci: 0.8, 2.63). several meta-analyses have not reported an increased risk of major congenital malformations following lamotrigine exposure in pregnancy compared with healthy and disease-matched controls. no patterns of specific malformation types were observed. the same meta-analyses evaluated the risk of additional maternal and infant outcomes including fetal death, stillbirth, preterm birth, small for gestational age, and neurodevelopmental delay. although there are no data suggesting an increased risk of these outcomes with lamotrigine monotherapy exposure, differences in outcome definition, ascertainment methods, and comparator groups limit the conclusions that can be drawn. animal data when lamotrigine was administered to pregnant mice, rats, or rabbits during the period of organogenesis (oral doses of up to 125, 25, and 30 mg/kg, respectively), reduced fetal body weight and increased incidences of fetal skeletal variations were seen in mice and rats at doses that were also maternally toxic. the no-effect doses for embryofetal developmental toxicity in mice, rats, and rabbits (75, 6.25, and 30 mg/kg, respectively) are similar to (mice and rabbits) or less than (rats) the human dose of 400 mg/day on a body surface area (mg/m 2 ) basis. in a study in which pregnant rats were administered lamotrigine (oral doses of 0, 5, or 25 mg/kg) during the period of organogenesis and offspring were evaluated postnatally, neurobehavioral abnormalities were observed in exposed offspring at both doses. the lowest effect dose for developmental neurotoxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the higher dose tested. when pregnant rats were administered lamotrigine (oral doses of 0, 5, 10, or 20 mg/kg) during the latter part of gestation and throughout lactation, increased offspring mortality (including stillbirths) was seen at all doses. the lowest effect dose for pre- and post-natal developmental toxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the 2 highest doses tested. when administered to pregnant rats, lamotrigine decreased fetal folate concentrations at doses greater than or equal to 5 mg/kg/day, which is less than the human dose of 400 mg/day on a mg/m 2 basis. risk summary lamotrigine is present in milk from lactating women taking lamotrigine tablets (see data). neonates and young infants are at risk for high serum levels because maternal serum and milk levels can rise to high levels postpartum if lamotrigine dosage has been increased during pregnancy but is not reduced after delivery to the pre-pregnancy dosage. glucuronidation is required for drug clearance. glucuronidation capacity is immature in the infant and this may also contribute to the level of lamotrigine exposure. events including rash, apnea, drowsiness, poor sucking, and poor weight gain (requiring hospitalization in some cases) have been reported in infants who have been human milk-fed by mothers using lamotrigine; whether or not these events were caused by lamotrigine is unknown. no data are available on the effects of the drug on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for lamotrigine and any potential adverse effects on the breastfed infant from lamotrigine or from the underlying maternal condition. clinical considerations human milk-fed infants should be closely monitored for adverse events resulting from lamotrigine. measurement of infant serum levels should be performed to rule out toxicity if concerns arise. human milk-feeding should be discontinued in infants with lamotrigine toxicity. data data from multiple small studies indicate that lamotrigine plasma levels in nursing infants have been reported to be as high as 50% of maternal plasma concentrations. epilepsy lamotrigine is indicated as adjunctive therapy in patients aged 2 years and older for partial-onset seizures and the generalized seizures of lennox-gastaut syndrome, and pgtc seizures. safety and efficacy of lamotrigine used as adjunctive treatment for partial-onset seizures were not demonstrated in a small, randomized, double-blind, placebo-controlled withdrawal trial in very young pediatric patients (aged 1 to 24 months). lamotrigine was associated with an increased risk for infectious adverse reactions (lamotrigine 37%, placebo 5%), and respiratory adverse reactions (lamotrigine 26%, placebo 5%). infectious adverse reactions included bronchiolitis, bronchitis, ear infection, eye infection, otitis externa, pharyngitis, urinary tract infection, and viral infection. respiratory adverse reactions included nasal congestion, cough, and apnea. bipolar disorder safety and efficacy of lamotrigine for the maintenance treatment of bipolar disorder were not established in a double-blind, randomized withdrawal, placebo-controlled trial that evaluated 301 pediatric patients aged 10 years to 17 years with a current manic/hypomanic, depressed, or mixed mood episode as defined by dsm-iv-tr. in the randomized phase of the trial, adverse reactions that occurred in at least 5% of patients taking lamotrigine (n = 87) and were twice as common compared with patients taking placebo (n = 86) were influenza (lamotrigine 8%, placebo 2%), oropharyngeal pain (lamotrigine 8%, placebo 2%), vomiting (lamotrigine 6%, placebo 2%), contact dermatitis (lamotrigine 5%, placebo 2%), upper abdominal pain (lamotrigine 5%, placebo 1%), and suicidal ideation (lamotrigine 5%, placebo 0%). juvenile animal data in a juvenile animal study in which lamotrigine (oral doses of 0, 5, 15, or 30 mg/kg) was administered to young rats from postnatal day 7 to 62, decreased viability and growth were seen at the highest dose tested and long-term neurobehavioral abnormalities (decreased locomotor activity, increased reactivity, and learning deficits in animals tested as adults) were observed at the 2 highest doses. the no-effect dose for adverse developmental effects in juvenile animals is less than the human dose of 400 mg/day on a mg/m 2 basis. clinical trials of lamotrigine for epilepsy and bipolar disorder did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently from younger patients or exhibit a different safety profile than that of younger patients. in general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy. experience in patients with hepatic impairment is limited. based on a clinical pharmacology study in 24 subjects with mild, moderate, and severe liver impairment [see clinical pharmacology ( 12.3)], the following general recommendations can be made. no dosage adjustment is needed in patients with mild liver impairment. initial, escalation, and maintenance doses should generally be reduced by approximately 25% in patients with moderate and severe liver impairment without ascites and 50% in patients with severe liver impairment with ascites. escalation and maintenance doses may be adjusted according to clinical response [see dosage and administration ( 2.1)]. lamotrigine is metabolized mainly by glucuronic acid conjugation, with the majority of the metabolites being recovered in the urine. in a small study comparing a single dose of lamotrigine in subjects with varying degrees of renal impairment with healthy volunteers, the plasma half-life of lamotrigine was approximately twice as long in the subjects with chronic renal failure [see clinical pharmacology ( 12.3)]. initial doses of lamotrigine should be based on patients' aed regimens; reduced maintenance doses may be effective for patients with significant renal impairment. few patients with severe renal impairment have been evaluated during chronic treatment with lamotrigine. because there is inadequate experience in this population, lamotrigine should be used with caution in these patients [see dosage and administration ( 2.1)].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - adjunctive therapy lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: - partial-onset seizures. - primary generalized tonic-clonic seizures (pgtc) seizures. - generalized seizures of lennox-gastaut syndrome. monotherapy lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (aed). safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from aeds other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant aeds. lamotrigine is indicated for the maintenance treatment of bipolar i disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in patients treated for acute mood episodes with standard therapy [see clinical studies ( 14.2)] .   limitations of use treatment of acute manic or mixed episodes is not recommended. effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. lamotrigine is contraindicated in patients who have demonstrated hypersensitivity (e.g., rash, angioedema, acute urticaria, extensive pruritus, mucosal ulceration) to the drug or its ingredients [see boxed warning, warnings and precautions   ( 5.1), ( 5.3)]. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including lamotrigine, during pregnancy. encourage women who are taking lamotrigine during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry by calling 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/. risk summary data from several prospective pregnancy exposure registries and epidemiological studies of pregnant women have not detected an increased frequency of major congenital malformations or a consistent pattern of malformations among women exposed to lamotrigine compared with the general population (see data) . the majority of lamotrigine pregnancy exposure data are from women with epilepsy. in animal studies, administration of lamotrigine during pregnancy resulted in developmental toxicity (increased mortality, decreased body weight, increased structural variation, neurobehavioral abnormalities) at doses lower than those administered clinically. lamotrigine decreased fetal folate concentrations in rats, an effect known to be associated with adverse pregnancy outcomes in animals and humans (see data) . the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations as with other aeds, physiological changes during pregnancy may affect lamotrigine concentrations and/or therapeutic effect. there have been reports of decreased lamotrigine concentrations during pregnancy and restoration of pre-pregnancy concentrations after delivery. dose adjustments may be necessary to maintain clinical response. data human data data from several international pregnancy registries have not shown an increased risk for malformations overall. the international lamotrigine pregnancy registry reported major congenital malformations in 2.2% (95% ci: 1.6%, 3.1%) of 1,558 infants exposed to lamotrigine monotherapy in the first trimester of pregnancy. the naaed pregnancy registry reported major congenital malformations among 2.0% of 1,562 infants exposed to lamotrigine monotherapy in the first trimester. eurap, a large international pregnancy registry focused outside of north america, reported major birth defects in 2.9% (95% ci: 2.3%, 3.7%) of 2,514 exposures to lamotrigine monotherapy in the first trimester. the frequency of major congenital malformations was similar to estimates from the general population. the naaed pregnancy registry observed an increased risk of isolated oral clefts: among 2,200 infants exposed to lamotrigine early in pregnancy, the risk of oral clefts was 3.2 per 1,000 (95% ci: 1.4, 6.3), a 3-fold increased risk versus unexposed healthy controls. this finding has not been observed in other large international pregnancy registries. furthermore, a case-control study based on 21 congenital anomaly registries covering over 10 million births in europe reported an adjusted odds ratio for isolated oral clefts with lamotrigine exposure of 1.45 (95% ci: 0.8, 2.63). several meta-analyses have not reported an increased risk of major congenital malformations following lamotrigine exposure in pregnancy compared with healthy and disease-matched controls. no patterns of specific malformation types were observed. the same meta-analyses evaluated the risk of additional maternal and infant outcomes including fetal death, stillbirth, preterm birth, small for gestational age, and neurodevelopmental delay. although there are no data suggesting an increased risk of these outcomes with lamotrigine monotherapy exposure, differences in outcome definition, ascertainment methods, and comparator groups limit the conclusions that can be drawn. animal data when lamotrigine was administered to pregnant mice, rats, or rabbits during the period of organogenesis (oral doses of up to 125, 25, and 30 mg/kg, respectively), reduced fetal body weight and increased incidences of fetal skeletal variations were seen in mice and rats at doses that were also maternally toxic. the no-effect doses for embryofetal developmental toxicity in mice, rats, and rabbits (75, 6.25, and 30 mg/kg, respectively) are similar to (mice and rabbits) or less than (rats) the human dose of 400 mg/day on a body surface area (mg/m 2 ) basis. in a study in which pregnant rats were administered lamotrigine (oral doses of 0, 5, or 25 mg/kg) during the period of organogenesis and offspring were evaluated postnatally, neurobehavioral abnormalities were observed in exposed offspring at both doses. the lowest effect dose for developmental neurotoxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the higher dose tested. when pregnant rats were administered lamotrigine (oral doses of 0, 5, 10, or 20 mg/kg) during the latter part of gestation and throughout lactation, increased offspring mortality (including stillbirths) was seen at all doses. the lowest effect dose for pre- and post-natal developmental toxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the 2 highest doses tested. when administered to pregnant rats, lamotrigine decreased fetal folate concentrations at doses greater than or equal to 5 mg/kg/day, which is less than the human dose of 400 mg/day on a mg/m 2 basis. risk summary lamotrigine is present in milk from lactating women taking lamotrigine tablets (see data). neonates and young infants are at risk for high serum levels because maternal serum and milk levels can rise to high levels postpartum if lamotrigine dosage has been increased during pregnancy but is not reduced after delivery to the pre-pregnancy dosage. glucuronidation is required for drug clearance. glucuronidation capacity is immature in the infant and this may also contribute to the level of lamotrigine exposure. events including rash, apnea, drowsiness, poor sucking, and poor weight gain (requiring hospitalization in some cases) have been reported in infants who have been human milk-fed by mothers using lamotrigine; whether or not these events were caused by lamotrigine is unknown. no data are available on the effects of the drug on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for lamotrigine and any potential adverse effects on the breastfed infant from lamotrigine or from the underlying maternal condition. clinical considerations human milk-fed infants should be closely monitored for adverse events resulting from lamotrigine. measurement of infant serum levels should be performed to rule out toxicity if concerns arise. human milk-feeding should be discontinued in infants with lamotrigine toxicity. data data from multiple small studies indicate that lamotrigine plasma levels in nursing infants have been reported to be as high as 50% of maternal plasma concentrations. epilepsy lamotrigine is indicated as adjunctive therapy in patients aged 2 years and older for partial-onset seizures and the generalized seizures of lennox-gastaut syndrome, and pgtc seizures. safety and efficacy of lamotrigine used as adjunctive treatment for partial-onset seizures were not demonstrated in a small, randomized, double-blind, placebo-controlled withdrawal trial in very young pediatric patients (aged 1 to 24 months). lamotrigine was associated with an increased risk for infectious adverse reactions (lamotrigine 37%, placebo 5%), and respiratory adverse reactions (lamotrigine 26%, placebo 5%). infectious adverse reactions included bronchiolitis, bronchitis, ear infection, eye infection, otitis externa, pharyngitis, urinary tract infection, and viral infection. respiratory adverse reactions included nasal congestion, cough, and apnea. bipolar disorder safety and efficacy of lamotrigine for the maintenance treatment of bipolar disorder were not established in a double-blind, randomized withdrawal, placebo-controlled trial that evaluated 301 pediatric patients aged 10 years to 17 years with a current manic/hypomanic, depressed, or mixed mood episode as defined by dsm-iv-tr. in the randomized phase of the trial, adverse reactions that occurred in at least 5% of patients taking lamotrigine (n = 87) and were twice as common compared with patients taking placebo (n = 86) were influenza (lamotrigine 8%, placebo 2%), oropharyngeal pain (lamotrigine 8%, placebo 2%), vomiting (lamotrigine 6%, placebo 2%), contact dermatitis (lamotrigine 5%, placebo 2%), upper abdominal pain (lamotrigine 5%, placebo 1%), and suicidal ideation (lamotrigine 5%, placebo 0%). juvenile animal data in a juvenile animal study in which lamotrigine (oral doses of 0, 5, 15, or 30 mg/kg) was administered to young rats from postnatal day 7 to 62, decreased viability and growth were seen at the highest dose tested and long-term neurobehavioral abnormalities (decreased locomotor activity, increased reactivity, and learning deficits in animals tested as adults) were observed at the 2 highest doses. the no-effect dose for adverse developmental effects in juvenile animals is less than the human dose of 400 mg/day on a mg/m 2 basis. clinical trials of lamotrigine for epilepsy and bipolar disorder did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently from younger patients or exhibit a different safety profile than that of younger patients. in general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy. experience in patients with hepatic impairment is limited. based on a clinical pharmacology study in 24 subjects with mild, moderate, and severe liver impairment [see clinical pharmacology ( 12.3)], the following general recommendations can be made. no dosage adjustment is needed in patients with mild liver impairment. initial, escalation, and maintenance doses should generally be reduced by approximately 25% in patients with moderate and severe liver impairment without ascites and 50% in patients with severe liver impairment with ascites. escalation and maintenance doses may be adjusted according to clinical response [see dosage and administration ( 2.1)]. lamotrigine is metabolized mainly by glucuronic acid conjugation, with the majority of the metabolites being recovered in the urine. in a small study comparing a single dose of lamotrigine in subjects with varying degrees of renal impairment with healthy volunteers, the plasma half-life of lamotrigine was approximately twice as long in the subjects with chronic renal failure [see clinical pharmacology ( 12.3)]. initial doses of lamotrigine should be based on patients' aed regimens; reduced maintenance doses may be effective for patients with significant renal impairment. few patients with severe renal impairment have been evaluated during chronic treatment with lamotrigine. because there is inadequate experience in this population, lamotrigine should be used with caution in these patients [see dosage and administration ( 2.1)].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - adjunctive therapy lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: - partial-onset seizures. - primary generalized tonic-clonic seizures (pgtc) seizures. - generalized seizures of lennox-gastaut syndrome. monotherapy lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (aed). safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from aeds other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant aeds. lamotrigine is indicated for the maintenance treatment of bipolar i disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in patients treated for acute mood episodes with standard therapy [see clinical studies ( 14.2)] .   limitations of use treatment of acute manic or mixed episodes is not recommended. effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. lamotrigine is contraindicated in patients who have demonstrated hypersensitivity (e.g., rash, angioedema, acute urticaria, extensive pruritus, mucosal ulceration) to the drug or its ingredients [see boxed warning, warnings and precautions   ( 5.1), ( 5.3)]. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including lamotrigine, during pregnancy. encourage women who are taking lamotrigine during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry by calling 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/. risk summary data from several prospective pregnancy exposure registries and epidemiological studies of pregnant women have not detected an increased frequency of major congenital malformations or a consistent pattern of malformations among women exposed to lamotrigine compared with the general population (see data) . the majority of lamotrigine pregnancy exposure data are from women with epilepsy. in animal studies, administration of lamotrigine during pregnancy resulted in developmental toxicity (increased mortality, decreased body weight, increased structural variation, neurobehavioral abnormalities) at doses lower than those administered clinically. lamotrigine decreased fetal folate concentrations in rats, an effect known to be associated with adverse pregnancy outcomes in animals and humans (see data) . the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations as with other aeds, physiological changes during pregnancy may affect lamotrigine concentrations and/or therapeutic effect. there have been reports of decreased lamotrigine concentrations during pregnancy and restoration of pre-pregnancy concentrations after delivery. dose adjustments may be necessary to maintain clinical response. data human data data from several international pregnancy registries have not shown an increased risk for malformations overall. the international lamotrigine pregnancy registry reported major congenital malformations in 2.2% (95% ci: 1.6%, 3.1%) of 1,558 infants exposed to lamotrigine monotherapy in the first trimester of pregnancy. the naaed pregnancy registry reported major congenital malformations among 2.0% of 1,562 infants exposed to lamotrigine monotherapy in the first trimester. eurap, a large international pregnancy registry focused outside of north america, reported major birth defects in 2.9% (95% ci: 2.3%, 3.7%) of 2,514 exposures to lamotrigine monotherapy in the first trimester. the frequency of major congenital malformations was similar to estimates from the general population. the naaed pregnancy registry observed an increased risk of isolated oral clefts: among 2,200 infants exposed to lamotrigine early in pregnancy, the risk of oral clefts was 3.2 per 1,000 (95% ci: 1.4, 6.3), a 3-fold increased risk versus unexposed healthy controls. this finding has not been observed in other large international pregnancy registries. furthermore, a case-control study based on 21 congenital anomaly registries covering over 10 million births in europe reported an adjusted odds ratio for isolated oral clefts with lamotrigine exposure of 1.45 (95% ci: 0.8, 2.63). several meta-analyses have not reported an increased risk of major congenital malformations following lamotrigine exposure in pregnancy compared with healthy and disease-matched controls. no patterns of specific malformation types were observed. the same meta-analyses evaluated the risk of additional maternal and infant outcomes including fetal death, stillbirth, preterm birth, small for gestational age, and neurodevelopmental delay. although there are no data suggesting an increased risk of these outcomes with lamotrigine monotherapy exposure, differences in outcome definition, ascertainment methods, and comparator groups limit the conclusions that can be drawn. animal data when lamotrigine was administered to pregnant mice, rats, or rabbits during the period of organogenesis (oral doses of up to 125, 25, and 30 mg/kg, respectively), reduced fetal body weight and increased incidences of fetal skeletal variations were seen in mice and rats at doses that were also maternally toxic. the no-effect doses for embryofetal developmental toxicity in mice, rats, and rabbits (75, 6.25, and 30 mg/kg, respectively) are similar to (mice and rabbits) or less than (rats) the human dose of 400 mg/day on a body surface area (mg/m 2 ) basis. in a study in which pregnant rats were administered lamotrigine (oral doses of 0, 5, or 25 mg/kg) during the period of organogenesis and offspring were evaluated postnatally, neurobehavioral abnormalities were observed in exposed offspring at both doses. the lowest effect dose for developmental neurotoxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the higher dose tested. when pregnant rats were administered lamotrigine (oral doses of 0, 5, 10, or 20 mg/kg) during the latter part of gestation and throughout lactation, increased offspring mortality (including stillbirths) was seen at all doses. the lowest effect dose for pre- and post-natal developmental toxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the 2 highest doses tested. when administered to pregnant rats, lamotrigine decreased fetal folate concentrations at doses greater than or equal to 5 mg/kg/day, which is less than the human dose of 400 mg/day on a mg/m 2 basis. risk summary lamotrigine is present in milk from lactating women taking lamotrigine tablets (see data). neonates and young infants are at risk for high serum levels because maternal serum and milk levels can rise to high levels postpartum if lamotrigine dosage has been increased during pregnancy but is not reduced after delivery to the pre-pregnancy dosage. glucuronidation is required for drug clearance. glucuronidation capacity is immature in the infant and this may also contribute to the level of lamotrigine exposure. events including rash, apnea, drowsiness, poor sucking, and poor weight gain (requiring hospitalization in some cases) have been reported in infants who have been human milk-fed by mothers using lamotrigine; whether or not these events were caused by lamotrigine is unknown. no data are available on the effects of the drug on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for lamotrigine and any potential adverse effects on the breastfed infant from lamotrigine or from the underlying maternal condition. clinical considerations human milk-fed infants should be closely monitored for adverse events resulting from lamotrigine. measurement of infant serum levels should be performed to rule out toxicity if concerns arise. human milk-feeding should be discontinued in infants with lamotrigine toxicity. data data from multiple small studies indicate that lamotrigine plasma levels in nursing infants have been reported to be as high as 50% of maternal plasma concentrations. epilepsy lamotrigine is indicated as adjunctive therapy in patients aged 2 years and older for partial-onset seizures and the generalized seizures of lennox-gastaut syndrome, and pgtc seizures. safety and efficacy of lamotrigine used as adjunctive treatment for partial-onset seizures were not demonstrated in a small, randomized, double-blind, placebo-controlled withdrawal trial in very young pediatric patients (aged 1 to 24 months). lamotrigine was associated with an increased risk for infectious adverse reactions (lamotrigine 37%, placebo 5%), and respiratory adverse reactions (lamotrigine 26%, placebo 5%). infectious adverse reactions included bronchiolitis, bronchitis, ear infection, eye infection, otitis externa, pharyngitis, urinary tract infection, and viral infection. respiratory adverse reactions included nasal congestion, cough, and apnea. bipolar disorder safety and efficacy of lamotrigine for the maintenance treatment of bipolar disorder were not established in a double-blind, randomized withdrawal, placebo-controlled trial that evaluated 301 pediatric patients aged 10 years to 17 years with a current manic/hypomanic, depressed, or mixed mood episode as defined by dsm-iv-tr. in the randomized phase of the trial, adverse reactions that occurred in at least 5% of patients taking lamotrigine (n = 87) and were twice as common compared with patients taking placebo (n = 86) were influenza (lamotrigine 8%, placebo 2%), oropharyngeal pain (lamotrigine 8%, placebo 2%), vomiting (lamotrigine 6%, placebo 2%), contact dermatitis (lamotrigine 5%, placebo 2%), upper abdominal pain (lamotrigine 5%, placebo 1%), and suicidal ideation (lamotrigine 5%, placebo 0%). juvenile animal data in a juvenile animal study in which lamotrigine (oral doses of 0, 5, 15, or 30 mg/kg) was administered to young rats from postnatal day 7 to 62, decreased viability and growth were seen at the highest dose tested and long-term neurobehavioral abnormalities (decreased locomotor activity, increased reactivity, and learning deficits in animals tested as adults) were observed at the 2 highest doses. the no-effect dose for adverse developmental effects in juvenile animals is less than the human dose of 400 mg/day on a mg/m 2 basis. clinical trials of lamotrigine for epilepsy and bipolar disorder did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently from younger patients or exhibit a different safety profile than that of younger patients. in general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy. experience in patients with hepatic impairment is limited. based on a clinical pharmacology study in 24 subjects with mild, moderate, and severe liver impairment [see clinical pharmacology ( 12.3)], the following general recommendations can be made. no dosage adjustment is needed in patients with mild liver impairment. initial, escalation, and maintenance doses should generally be reduced by approximately 25% in patients with moderate and severe liver impairment without ascites and 50% in patients with severe liver impairment with ascites. escalation and maintenance doses may be adjusted according to clinical response [see dosage and administration ( 2.1)]. lamotrigine is metabolized mainly by glucuronic acid conjugation, with the majority of the metabolites being recovered in the urine. in a small study comparing a single dose of lamotrigine in subjects with varying degrees of renal impairment with healthy volunteers, the plasma half-life of lamotrigine was approximately twice as long in the subjects with chronic renal failure [see clinical pharmacology ( 12.3)]. initial doses of lamotrigine should be based on patients' aed regimens; reduced maintenance doses may be effective for patients with significant renal impairment. few patients with severe renal impairment have been evaluated during chronic treatment with lamotrigine. because there is inadequate experience in this population, lamotrigine should be used with caution in these patients [see dosage and administration ( 2.1)].

USA - engelsk - NLM (National Library of Medicine)

remedyrepack inc. - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - adjunctive therapy lamotrigine is indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: - partial-onset seizures. - primary generalized tonic-clonic seizures (pgtc) seizures. - generalized seizures of lennox-gastaut syndrome. monotherapy lamotrigine is indicated for conversion to monotherapy in adults (aged 16 years and older) with partial-onset seizures who are receiving treatment with carbamazepine, phenytoin, phenobarbital, primidone, or valproate as the single antiepileptic drug (aed). safety and effectiveness of lamotrigine have not been established (1) as initial monotherapy; (2) for conversion to monotherapy from aeds other than carbamazepine, phenytoin, phenobarbital, primidone, or valproate; or (3) for simultaneous conversion to monotherapy from 2 or more concomitant aeds. lamotrigine is indicated for the maintenance treatment of bipolar i disorder to delay the time to occurrence of mood episodes (depression, mania, hypomania, mixed episodes) in patients treated for acute mood episodes with standard therapy [see clinical studies ( 14.2)] .   limitations of use treatment of acute manic or mixed episodes is not recommended. effectiveness of lamotrigine in the acute treatment of mood episodes has not been established. lamotrigine is contraindicated in patients who have demonstrated hypersensitivity (e.g., rash, angioedema, acute urticaria, extensive pruritus, mucosal ulceration) to the drug or its ingredients [see boxed warning, warnings and precautions   ( 5.1), ( 5.3)]. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including lamotrigine, during pregnancy. encourage women who are taking lamotrigine during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry by calling 1-888-233-2334 or visiting http://www.aedpregnancyregistry.org/. risk summary data from several prospective pregnancy exposure registries and epidemiological studies of pregnant women have not detected an increased frequency of major congenital malformations or a consistent pattern of malformations among women exposed to lamotrigine compared with the general population (see data) . the majority of lamotrigine pregnancy exposure data are from women with epilepsy. in animal studies, administration of lamotrigine during pregnancy resulted in developmental toxicity (increased mortality, decreased body weight, increased structural variation, neurobehavioral abnormalities) at doses lower than those administered clinically. lamotrigine decreased fetal folate concentrations in rats, an effect known to be associated with adverse pregnancy outcomes in animals and humans (see data) . the estimated background risk of major birth defects and miscarriage for the indicated population is unknown. in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. clinical considerations as with other aeds, physiological changes during pregnancy may affect lamotrigine concentrations and/or therapeutic effect. there have been reports of decreased lamotrigine concentrations during pregnancy and restoration of pre-pregnancy concentrations after delivery. dose adjustments may be necessary to maintain clinical response. data human data data from several international pregnancy registries have not shown an increased risk for malformations overall. the international lamotrigine pregnancy registry reported major congenital malformations in 2.2% (95% ci: 1.6%, 3.1%) of 1,558 infants exposed to lamotrigine monotherapy in the first trimester of pregnancy. the naaed pregnancy registry reported major congenital malformations among 2.0% of 1,562 infants exposed to lamotrigine monotherapy in the first trimester. eurap, a large international pregnancy registry focused outside of north america, reported major birth defects in 2.9% (95% ci: 2.3%, 3.7%) of 2,514 exposures to lamotrigine monotherapy in the first trimester. the frequency of major congenital malformations was similar to estimates from the general population. the naaed pregnancy registry observed an increased risk of isolated oral clefts: among 2,200 infants exposed to lamotrigine early in pregnancy, the risk of oral clefts was 3.2 per 1,000 (95% ci: 1.4, 6.3), a 3-fold increased risk versus unexposed healthy controls. this finding has not been observed in other large international pregnancy registries. furthermore, a case-control study based on 21 congenital anomaly registries covering over 10 million births in europe reported an adjusted odds ratio for isolated oral clefts with lamotrigine exposure of 1.45 (95% ci: 0.8, 2.63). several meta-analyses have not reported an increased risk of major congenital malformations following lamotrigine exposure in pregnancy compared with healthy and disease-matched controls. no patterns of specific malformation types were observed. the same meta-analyses evaluated the risk of additional maternal and infant outcomes including fetal death, stillbirth, preterm birth, small for gestational age, and neurodevelopmental delay. although there are no data suggesting an increased risk of these outcomes with lamotrigine monotherapy exposure, differences in outcome definition, ascertainment methods, and comparator groups limit the conclusions that can be drawn. animal data when lamotrigine was administered to pregnant mice, rats, or rabbits during the period of organogenesis (oral doses of up to 125, 25, and 30 mg/kg, respectively), reduced fetal body weight and increased incidences of fetal skeletal variations were seen in mice and rats at doses that were also maternally toxic. the no-effect doses for embryofetal developmental toxicity in mice, rats, and rabbits (75, 6.25, and 30 mg/kg, respectively) are similar to (mice and rabbits) or less than (rats) the human dose of 400 mg/day on a body surface area (mg/m 2 ) basis. in a study in which pregnant rats were administered lamotrigine (oral doses of 0, 5, or 25 mg/kg) during the period of organogenesis and offspring were evaluated postnatally, neurobehavioral abnormalities were observed in exposed offspring at both doses. the lowest effect dose for developmental neurotoxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the higher dose tested. when pregnant rats were administered lamotrigine (oral doses of 0, 5, 10, or 20 mg/kg) during the latter part of gestation and throughout lactation, increased offspring mortality (including stillbirths) was seen at all doses. the lowest effect dose for pre- and post-natal developmental toxicity in rats is less than the human dose of 400 mg/day on a mg/m 2 basis. maternal toxicity was observed at the 2 highest doses tested. when administered to pregnant rats, lamotrigine decreased fetal folate concentrations at doses greater than or equal to 5 mg/kg/day, which is less than the human dose of 400 mg/day on a mg/m 2 basis. risk summary lamotrigine is present in milk from lactating women taking lamotrigine tablets (see data). neonates and young infants are at risk for high serum levels because maternal serum and milk levels can rise to high levels postpartum if lamotrigine dosage has been increased during pregnancy but is not reduced after delivery to the pre-pregnancy dosage. glucuronidation is required for drug clearance. glucuronidation capacity is immature in the infant and this may also contribute to the level of lamotrigine exposure. events including rash, apnea, drowsiness, poor sucking, and poor weight gain (requiring hospitalization in some cases) have been reported in infants who have been human milk-fed by mothers using lamotrigine; whether or not these events were caused by lamotrigine is unknown. no data are available on the effects of the drug on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for lamotrigine and any potential adverse effects on the breastfed infant from lamotrigine or from the underlying maternal condition. clinical considerations human milk-fed infants should be closely monitored for adverse events resulting from lamotrigine. measurement of infant serum levels should be performed to rule out toxicity if concerns arise. human milk-feeding should be discontinued in infants with lamotrigine toxicity. data data from multiple small studies indicate that lamotrigine plasma levels in nursing infants have been reported to be as high as 50% of maternal plasma concentrations. epilepsy lamotrigine is indicated as adjunctive therapy in patients aged 2 years and older for partial-onset seizures and the generalized seizures of lennox-gastaut syndrome, and pgtc seizures. safety and efficacy of lamotrigine used as adjunctive treatment for partial-onset seizures were not demonstrated in a small, randomized, double-blind, placebo-controlled withdrawal trial in very young pediatric patients (aged 1 to 24 months). lamotrigine was associated with an increased risk for infectious adverse reactions (lamotrigine 37%, placebo 5%), and respiratory adverse reactions (lamotrigine 26%, placebo 5%). infectious adverse reactions included bronchiolitis, bronchitis, ear infection, eye infection, otitis externa, pharyngitis, urinary tract infection, and viral infection. respiratory adverse reactions included nasal congestion, cough, and apnea. bipolar disorder safety and efficacy of lamotrigine for the maintenance treatment of bipolar disorder were not established in a double-blind, randomized withdrawal, placebo-controlled trial that evaluated 301 pediatric patients aged 10 years to 17 years with a current manic/hypomanic, depressed, or mixed mood episode as defined by dsm-iv-tr. in the randomized phase of the trial, adverse reactions that occurred in at least 5% of patients taking lamotrigine (n = 87) and were twice as common compared with patients taking placebo (n = 86) were influenza (lamotrigine 8%, placebo 2%), oropharyngeal pain (lamotrigine 8%, placebo 2%), vomiting (lamotrigine 6%, placebo 2%), contact dermatitis (lamotrigine 5%, placebo 2%), upper abdominal pain (lamotrigine 5%, placebo 1%), and suicidal ideation (lamotrigine 5%, placebo 0%). juvenile animal data in a juvenile animal study in which lamotrigine (oral doses of 0, 5, 15, or 30 mg/kg) was administered to young rats from postnatal day 7 to 62, decreased viability and growth were seen at the highest dose tested and long-term neurobehavioral abnormalities (decreased locomotor activity, increased reactivity, and learning deficits in animals tested as adults) were observed at the 2 highest doses. the no-effect dose for adverse developmental effects in juvenile animals is less than the human dose of 400 mg/day on a mg/m 2 basis. clinical trials of lamotrigine for epilepsy and bipolar disorder did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently from younger patients or exhibit a different safety profile than that of younger patients. in general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function and of concomitant disease or other drug therapy. experience in patients with hepatic impairment is limited. based on a clinical pharmacology study in 24 subjects with mild, moderate, and severe liver impairment [see clinical pharmacology ( 12.3)], the following general recommendations can be made. no dosage adjustment is needed in patients with mild liver impairment. initial, escalation, and maintenance doses should generally be reduced by approximately 25% in patients with moderate and severe liver impairment without ascites and 50% in patients with severe liver impairment with ascites. escalation and maintenance doses may be adjusted according to clinical response [see dosage and administration ( 2.1)]. lamotrigine is metabolized mainly by glucuronic acid conjugation, with the majority of the metabolites being recovered in the urine. in a small study comparing a single dose of lamotrigine in subjects with varying degrees of renal impairment with healthy volunteers, the plasma half-life of lamotrigine was approximately twice as long in the subjects with chronic renal failure [see clinical pharmacology ( 12.3)]. initial doses of lamotrigine should be based on patients' aed regimens; reduced maintenance doses may be effective for patients with significant renal impairment. few patients with severe renal impairment have been evaluated during chronic treatment with lamotrigine. because there is inadequate experience in this population, lamotrigine should be used with caution in these patients [see dosage and administration ( 2.1)].