USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - levetiracetam (unii: 44yrr34555) (levetiracetam - unii:44yrr34555) - levetiracetam 100 mg in 1 ml - levetiracetam oral solution is indicated for the treatment of partial-onset seizures in patients 1 month of age and older. levetiracetam oral solution is indicated as adjunctive therapy for the treatment of myoclonic seizures in patients 12 years of age and older with juvenile myoclonic epilepsy. levetiracetam oral solution is indicated as adjunctive therapy for the treatment of primary generalized tonic-clonic seizures in patients 6 years of age and older with idiopathic generalized epilepsy. levetiracetam oral solution is contraindicated in patients with a hypersensitivity to levetiracetam. reactions have included anaphylaxis and angioedema [see warnings and precautions (5.4)] . pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antiepileptic drugs (aeds), including levetiracetam, during pregnancy. encourage women who are taking levetiracetam 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 prolonged experience with levetiracetam in pregnant women has not identified a drug-associated risk of major birth defects or miscarriage, based on published literature, which includes data from pregnancy registries and reflects experience over two decades [see human data] . in animal studies, levetiracetam produced developmental toxicity (increased embryofetal and offspring mortality, increased incidences of fetal structural abnormalities, decreased embryofetal and offspring growth, neurobehavioral alterations in offspring) at doses similar to human therapeutic doses [see animal 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. clinical considerations levetiracetam blood levels may decrease during pregnancy [see warnings and precautions (5.10) ] . physiological changes during pregnancy may affect levetiracetam concentration. decrease in levetiracetam plasma concentrations has been observed during pregnancy. this decrease is more pronounced during the third trimester. dose adjustments may be necessary to maintain clinical response. data while available studies cannot definitively establish the absence of risk, data from the published literature and pregnancy registries have not established an association with levetiracetam use during pregnancy and major birth defects or miscarriage. when levetiracetam (0, 400, 1,200, or 3,600 mg/kg/day) was administered orally to pregnant rats during the period of organogenesis, reduced fetal weights and increased incidence of fetal skeletal variations were observed at the highest dose tested. there was no evidence of maternal toxicity. the no-effect dose for adverse effects on embryofetal developmental in rats (1,200 mg/kg/day) is approximately 4 times the maximum recommended human dose (mrhd) of 3,000 mg on a body surface area (mg/m2 ) basis. oral administration of levetiracetam (0, 200, 600, or 1,800 mg/kg/day) to pregnant rabbits during the period of organogenesis resulted in increased embryofetal mortality and incidence of fetal skeletal variations at the mid and high dose and decreased fetal weights and increased incidence of fetal malformations at the high dose, which was associated with maternal toxicity. the no-effect dose for adverse effects on embryofetal development in rabbits (200 mg/kg/day) is approximately equivalent to the mrhd on a mg/m2  basis. oral administration of levetiracetam (0, 70, 350, or 1,800 mg/kg/day) to female rats throughout pregnancy and lactation led to an increased incidence of fetal skeletal variations, reduced fetal body weight, and decreased growth in offspring at the mid and high doses and increased pup mortality and neurobehavioral alterations in offspring at the highest dose tested. there was no evidence of maternal toxicity. the no-effect dose for adverse effects on pre- and postnatal development in rats (70 mg/kg/day) is less than the mrhd on a mg/m2  basis. oral administration of levetiracetam to rats during the latter part of gestation and throughout lactation produced no adverse developmental or maternal effects at doses of up to 1,800 mg/kg/day (6 times the mrhd on a mg/m2  basis). risk summary levetiracetam is excreted in human milk. there are no data on the effects of levetiracetam on the breastfed infant, or the effects on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for levetiracetam and any potential adverse effects on the breastfed infant from levetiracetam or from the underlying maternal condition. the safety and effectiveness of levetiracetam for the treatment of partial-onset seizures in patients 1 month to 16 years of age have been established [see clinical pharmacology (12.3)  and clinical studies (14.1)] . the dosing recommendation in these pediatric patients varies according to age group and is weight-based [see  dosage and administration (2.2)] . the safety and effectiveness of levetiracetam as adjunctive therapy for the treatment of myoclonic seizures in adolescents 12 years of age and older with juvenile myoclonic epilepsy have been established [see  clinical studies (14.2)] . the safety and effectiveness of levetiracetam as adjunctive therapy for the treatment of primary generalized tonic-clonic seizures in pediatric patients 6 years of age and older with idiopathic generalized epilepsy have been established [see  clinical studies (14.3)] . safety and effectiveness for the treatment of partial-onset seizures in pediatric patients below the age of 1 month; adjunctive therapy for the treatment of myoclonic seizures in pediatric patients below the age of 12 years; and adjunctive therapy for the treatment of primary generalized tonic-clonic seizures in pediatric patients below the age of 6 years have not been established. a 3-month, randomized, double-blind, placebo-controlled study was performed to assess the neurocognitive and behavioral effects of levetiracetam as adjunctive therapy in 98 (levetiracetam n=64, placebo n=34) pediatric patients, ages 4 to 16 years old, with partial seizures that were inadequately controlled. the target dose was 60 mg/kg/day. neurocognitive effects were measured by the leiter-r attention and memory (am) battery, which measures various aspects of a child's memory and attention. although no substantive differences were observed between the placebo and drug treated groups in the median change from baseline in this battery, the study was not adequate to assess formal statistical non-inferiority of the drug and placebo. the achenbach child behavior checklist (cbcl/6 to 18), a standardized validated tool used to assess a child’s competencies and behavioral/emotional problems, was also assessed in this study. an analysis of the cbcl/6 to 18 indicated on average a worsening in levetiracetam-treated patients in aggressive behavior, one of the eight syndrome scores [see  warnings and precautions (5.1)] . juvenile animal toxicity data studies of levetiracetam in juvenile rats (dosed on postnatal days 4 through 52) and dogs (dosed from postnatal weeks 3 through 7) at doses of up to 1,800 mg/kg/day (approximately 7 and 24 times, respectively, the maximum recommended pediatric dose of 60 mg/kg/day on a mg/m2 basis) did not demonstrate adverse effects on postnatal development. there were 347 subjects in clinical studies of levetiracetam that were 65 and over. no overall differences in safety were observed between these subjects and younger subjects. there were insufficient numbers of elderly subjects in controlled trials of epilepsy to adequately assess the effectiveness of levetiracetam in these patients. levetiracetam is known to be substantially excreted by the kidney, 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, care should be taken in dose selection, and it may be useful to monitor renal function [see clinical pharmacology (12.3)] . clearance of levetiracetam is decreased in patients with renal impairment and is correlated with creatinine clearance [see clinical pharmacology (12.3)] . dose adjustment is recommended for patients with impaired renal function and supplemental doses should be given to patients after dialysis [see dosage and administration (2.5)] .

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - escitalopram oxalate (unii: 5u85dbw7lo) (escitalopram - unii:4o4s742any) - escitalopram 5 mg in 5 ml - escitalopram oral solution is indicated for the treatment of: - major depressive disorder (mdd) in adults and pediatric patients 12 years of age and older. - generalized anxiety disorder (gad) in adults. additional pediatric use information is approved for abbvie inc.’s lexapro (escitalopram) oral solution. however, due to abbvie inc.’s marketing exclusivity rights, this drug product is not labeled with that information. escitalopram oxalate is contraindicated in patients: - taking maois with escitalopram oxalate or within 14 days of stopping treatment with escitalopram oxalate because of an increased risk of serotonin syndrome. the use of escitalopram oxalate within 14 days of stopping an maoi intended to treat psychiatric disorders is also contraindicated [see dosage and administration (2.7)  and warnings and precautions (5.2)] . starting escitalopram oxalate in a patient who is being treated with maois such as linezolid or intravenous methylene blue is also contraindicated because of an increased risk of serotonin syndrome [see dosage and administration (2.6)  and warnings and precautions (5.2)] . - taking pimozide [see drug interactions (7)] . - with a hypersensitivity to escitalopram or citalopram or any of the inactive ingredients in escitalopram oral solution. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to 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/clnical-and-research-programs/pregnancyregistry/antidepressants/. risk summary based on data from published observational studies, exposure to ssris, particularly in the month before delivery, has been associated with a less than 2-fold increase in the risk of postpartum hemorrhage [see warnings and precautions (5.7)  and clinical considerations] . available data from published epidemiologic studies and post-marketing reports have not established an increased risk of major birth defects or miscarriage. there are risks of persistent pulmonary hypertension of the newborn (pphn) (see data) and poor neonatal adaptation (see clinical considerations) with exposure to selective serotonin reuptake inhibitors (ssris), including escitalopram, during pregnancy. there are risks associated with untreated depression in pregnancy (see clinical considerations). in animal reproduction studies, both escitalopram and racemic citalopram have been shown to have adverse effects on embryo/fetal and postnatal development, including fetal structural abnormalities, when administered at doses greater than human therapeutic doses (see data) . 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 the clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. clinical considerations disease-associated maternal risk and/or embryo/fetal risk women who discontinue antidepressants are more likely to experience a relapse of major depression than women who continue antidepressants. this finding is from a prospective longitudinal study of 201 pregnant women with a history of major depression, who were euthymic and taking antidepressants at the beginning of pregnancy. consider the risk of untreated depression when discontinuing or changing treatment with antidepressant medication during pregnancy and postpartum. maternal adverse reactions use of escitalopram oxalate in the month before delivery may be associated with an increased risk of postpartum hemorrhage [see warnings and precautions (5.7)]. fetal/neonatal adverse reactions neonates exposed to ssris or snris, including escitalopram, late in third trimester have developed complications requiring prolonged hospitalization, respiratory support, and tube feeding. such complications can arise immediately upon delivery. reported clinical findings have included respiratory distress, cyanosis, apnea, seizures, temperature instability, feeding difficulty, vomiting, hypoglycemia, hypotonia, hypertonia, hyperreflexia, tremor, jitteriness, irritability, and constant crying. these features are consistent with either a direct toxic effect of ssris and snris or, possibly, a drug discontinuation syndrome. it should be noted that, in some cases, the clinical picture is consistent with serotonin syndrome [see warnings and precautions (5.2)] . data human data exposure to ssris, particularly later in pregnancy, may increase the risk for pphn. pphn occurs in 1 to 2 per 1,000 live births in the general populations and is associated with substantial neonatal morbidity and mortality. animal data in a rat embryo/fetal development study, oral administration of escitalopram (56, 112, or 150 mg/kg/day) to pregnant animals during the period of organogenesis resulted in decreased fetal body weight and associated delays in ossification at the two higher doses [approximately ≥ 55 times the maximum recommended human dose (mrhd) of 20 mg/day on a mg/m2 basis]. maternal toxicity (clinical signs and decreased body weight gain and food consumption), mild at 56 mg/kg/day, was present at all dose levels. the developmental no-effect dose of 56 mg/kg/day is approximately 27 times the mrhd of 20 mg on a mg/m2 basis. no malformations were observed at any of the doses tested (as high as 73 times the mrhd on a mg/m2 basis). when female rats were treated with escitalopram (6, 12, 24, or 48 mg/kg/day) during pregnancy and through weaning, slightly increased offspring mortality and growth retardation were noted at 48 mg/kg/day which is approximately 23 times the mrhd of 20 mg on a mg/m2 basis. slight maternal toxicity (clinical signs and decreased body weight gain and food consumption) was seen at this dose. slightly increased offspring mortality was also seen at 24 mg/kg/day. the no-effect dose was 12 mg/kg/day which is approximately 6 times the mrhd of 20 mg on a mg/m2 basis. in two rat embryo/fetal development studies, oral administration of racemic citalopram (32, 56, or 112 mg/kg/day) to pregnant animals during the period of organogenesis resulted in decreased embryo/fetal growth and survival and an increased incidence of fetal abnormalities (including cardiovascular and skeletal defects) at the high dose, which is approximately 18 times the mrhd of 60 mg/day on a mg/m2 basis. this dose was also associated with maternal toxicity (clinical signs, decreased body weight gain). the developmental no-effect dose was 56 mg/kg/day is approximately 9 times the mrhd on a mg/m2 basis. in a rabbit study, no adverse effects on embryo/fetal development were observed at doses of racemic citalopram of up to 16 mg/kg/day, or approximately 5 times the mrhd on a mg/m2 basis. thus, developmental effects of racemic citalopram were observed at a maternally toxic dose in the rat and were not observed in the rabbit. when female rats were treated with racemic citalopram (4.8, 12.8, or 32 mg/kg/day) from late gestation through weaning, increased offspring mortality during the first 4 days after birth and persistent offspring growth retardation were observed at the highest dose, which is approximately 5 times the mrhd of 60 mg on a mg/m2 basis. the no-effect dose was 12.8 mg/kg/day is approximately 2 times the mrhd on a mg/m2 basis. similar effects on offspring mortality and growth were seen when dams were treated throughout gestation and early lactation at doses ≥ 24 mg/kg/day, approximately 4 times the mrhd on a mg/m2 basis. a no-effect dose was not determined in that study. risk summary data from the published literature report the presence of escitalopram and desmethylescitalopram in human milk (see data) . there are reports of excessive sedation, restlessness, agitation, poor feeding and poor weight gain in infants exposed to escitalopram, through breast milk (see clinical considerations) . there are no data on the effects of escitalopram or its metabolites on milk production. the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for escitalopram oxalate and any potential adverse effects on the breastfed child from escitalopram oxalate or from the underlying maternal condition. clinical considerations infants exposed to escitalopram oxalate should be monitored for excess sedation, restlessness, agitation, poor feeding and poor weight gain. data a study of 8 nursing mothers on escitalopram with daily doses of 10 to 20 mg/day showed that exclusively breast-fed infants receive approximately 3.9% of the maternal weight-adjusted dose of escitalopram and 1.7% of the maternal weight-adjusted dose of desmethylcitalopram. major depressive disorder the safety and effectiveness of escitalopram oxalate for the treatment of major depressive disorder have been established in pediatric patients 12 years of age and older. use of escitalopram oxalate for this indication is supported by evidence from adequate and well-controlled studies in adults with additional evidence from an 8-week, flexible-dose, placebo-controlled study that compared escitalopram oxalate 10 mg to 20 mg once daily to placebo in pediatric patients 12 to 17 years of age with major depressive disorder [see clinical studies (14.1)] . the safety of escitalopram oxalate was similar to adult patients with mdd [see adverse reactions (6.1)] . the safety and effectiveness of escitalopram oxalate for the treatment of major depressive disorder have not been established in pediatric patients younger than 12 years of age. in a 24-week, open- label safety study in 118 pediatric patient (aged 7 to 11 years) who had major depressive disorder, the safety findings were consistent with the known safety and tolerability profile for escitalopram oxalate. generalized anxiety disorder the safety and effectiveness of escitalopram oxalate for the treatment of generalized anxiety disorder have not been established in pediatric patients younger than 7 years of age. antidepressants increase the risk of suicidal thoughts and behaviors in pediatric patients [see warnings and precautions (5.1)] . decreased appetite and weight loss have been observed in association with the use of ssris. consequently, regular monitoring of weight and growth should be performed in children and adolescents treated with an ssri such as escitalopram oxalate. juvenile animal toxicity data in a juvenile animal study, male and female rats were administered escitalopram at 5, 40, or 80 mg/kg/day by oral gavage from postnatal day (pnd) 21 to pnd 69. a delay in sexual maturation was observed in both males and females at ≥ 40 mg/kg/day with a no observed adverse effect level (noael) of 5 mg/kg/day. this noael was associated with plasma auc levels less than those measured at the maximum recommended dose (mrhd) in pediatrics (20 mg). however, there was no effect on reproductive function. increased motor activity (both ambulatory and fine movements) was observed in females prior to daily dosing at ≥ 40 mg/kg/day (3.5 times the mrhd based on auc levels). a reversible disruption of learning and memory function was observed in males at 80 mg/kg/day with a noael of 40 mg/kg/day, which was associated with an auc level 3.5 times those measured at the mrhd in pediatrics. there was no effect on learning and memory function in treated female rats. additional pediatric use information is approved for abbvie inc.’s lexapro (escitalopram) oral solution. however, due to abbvie inc.’s marketing exclusivity rights, this drug product is not labeled with that information. approximately 69 patients (6%) of the 1,144 patients receiving escitalopram in controlled trials of escitalopram oxalate in major depressive disorder and gad were 60 years of age or older [see clinical studies (14.1, 14.2) ]. the number of elderly patients in these trials was insufficient to adequately assess for possible differential efficacy and safety measures on the basis of age. nevertheless, greater sensitivity of some elderly individuals to effects of escitalopram oxalate cannot be ruled out. in two pharmacokinetic studies, escitalopram half-life was increased by approximately 50% in subjects 65 years and older as compared to young subjects and cmax was unchanged [see clinical pharmacology (12.3)] . the recommended dosage of escitalopram oxalate for elderly patients is 10 mg daily [see dosage and administration (2.5)] . ssris, including escitalopram oxalate, have been associated with cases of clinically significant hyponatremia in elderly patients, who may be at greater risk for this adverse reaction [see warnings and precautions (5.6)] . of 4,422 patients in clinical studies of racemic citalopram, 1,357 were 60 and over, 1,034 were 65 and over, and 457 were 75 and over. no overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the geriatric and younger patients, but again, greater sensitivity of some elderly individuals cannot be ruled out. increased citalopram exposure occurs in patients with hepatic impairment [see clinical pharmacology (12.3)] . the recommended dosage of escitalopram oxalate in patients with hepatic impairment is 10 mg daily [see dosage and administration (2.5)] . pharmacokinetics of escitalopram oxalate in patients with a creatinine clearance less than 20 ml/minute has not been evaluated. no dosage adjustment is necessary for patients with mild or moderate renal impairment [see dosage and administration (2.5), clinical  pharmacology (12.3) ] . physical and psychological dependence animal studies suggest that the abuse liability of racemic citalopram is low. escitalopram oxalate has not been systematically studied in humans for its potential for abuse, tolerance, or physical dependence. the premarketing clinical experience with escitalopram oxalate did not reveal any drug-seeking behavior. however, these observations were not systematic and it is not possible to predict on the basis of this limited experience the extent to which a cns-active drug will be misused, diverted, and/or abused once marketed. consequently, physicians should carefully evaluate escitalopram oxalate patients for history of drug abuse and follow such patients closely, observing them for signs of misuse or abuse (e.g., development of tolerance, incrementations of dose, drug-seeking behavior).

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - phenytoin sodium (unii: 4182431bjh) (phenytoin - unii:6158tkw0c5) - phenytoin sodium 100 mg - extended phenytoin sodium capsules are indicated for the treatment of tonic-clonic (grand mal) and psychomotor (temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. phenytoin is contraindicated in patients with: - a history of hypersensitivity to phenytoin, its inactive ingredients, or other hydantoins [see warnings and precautions (5.5)] . reactions have included angioedema. - a history of prior acute hepatotoxicity attributable to phenytoin [see warnings and precautions (5.8)]. - co-administration with delavirdine because of the potential for loss of virologic response and possible resistance to delavirdine or to the class of non-nucleoside reverse transcriptase inhibitors. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to antiepileptic drugs (aeds), such as phenytoin sodium, during pregnancy. physicians are advised to recommend that pregnant patients taking phenytoin sodium enroll i

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - gabapentin (unii: 6cw7f3g59x) (gabapentin - unii:6cw7f3g59x) - gabapentin 250 mg in 5 ml - gabapentin oral solution 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 oral solution 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, 1,000 mg, 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 on a body surface area (mg/m2 ) basis. in studies in which rats received oral doses of gabapentin (500 mg 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/m2 basis. when pregnant rabbits were treated with gabapentin during the period of organogenesis, an increase in embryo-fetal mortality was observed at all doses tested (60 mg, 300 mg, or 1,500 mg/kg). the lowest dose tested is less than the mrhd on a mg/m2 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 - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - methylphenidate hydrochloride (unii: 4b3sc438hi) (methylphenidate - unii:207zz9qz49) - methylphenidate hydrochloride 18 mg - methylphenidate hydrochloride (hcl) extended-release tablets are indicated for the treatment of attention deficit hyperactivity disorder (adhd) in children 6 years of age and older, adolescents and adults up to the age of 65 [see clinical studies (14)] . hypersensitivity reactions, such as angioedema and anaphylactic reactions, have been observed in patients treated with methylphenidate hcl extended-release tablets. therefore, methylphenidate hcl extended-release tablets are contraindicated in patients known to be hypersensitive to methylphenidate or other components of the product [see adverse reactions (6.5)] . methylphenidate hcl extended-release tablets are contraindicated during treatment with monoamine oxidase (mao) inhibitors, and also within a minimum of 14 days following discontinuation of a mao inhibitor (hypertensive crises may result) [see drug interactions (7.1)] . pregnancy category c methylphenidate has been shown to have teratogenic effects in rabbits when given in doses of 200 mg/kg/day, which is approximately 100 times and 40 times the maximum recommended human dose on a mg/kg and mg/m2 basis, respectively. a reproduction study in rats revealed no evidence of harm to the fetus at oral doses up to 30 mg/kg/day, approximately 15-fold and 3-fold the maximum recommended human dose of methylphenidate hcl extended-release tablets on a mg/kg and mg/m2 basis, respectively. the approximate plasma exposure to methylphenidate plus its main metabolite ppaa in pregnant rats was 1 to 2 times that seen in trials in volunteers and patients with the maximum recommended dose of methylphenidate hcl extended-release tablets based on the auc. the safety of methylphenidate for use during human pregnancy has not been established. there are no adequate and well-controlled studies in pregnant women. methylphenidate hcl extended-release tablets should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. the effect of methylphenidate hcl extended-release tablets on labor and delivery in humans is unknown. it is not known whether methylphenidate is excreted in human milk. because many drugs are excreted in human milk, caution should be exercised if methylphenidate hcl extended-release tablets are administered to a nursing woman. in lactating female rats treated with a single oral dose of 5 mg/kg radiolabeled methylphenidate, radioactivity (representing methylphenidate and/or its metabolites) was observed in milk and levels were generally similar to those in plasma. methylphenidate hcl extended-release tablets should not be used in children under six years, since safety and efficacy in this age group have not been established. long-term effects of methylphenidate in children have not been well established. methylphenidate hcl extended-release tablets have not been studied in patients greater than 65 years of age. methylphenidate hydrochloride extended-release tablets contain methylphenidate a schedule ii controlled substance. methylphenidate hcl extended-release tablets have a high potential for abuse and misuse which can lead to the development of a substance use disorder, including addiction [see warnings and precautions (5.1)] . methylphenidate hcl extended-release tablets can be diverted for non-medical use into illicit channels or distribution. abuse is the intentional non-therapeutic use of a drug, even once, to achieve a desired psychological or physiological effect. 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. drug addiction is a cluster of behavioral, cognitive, and physiological phenomena that may include a strong desire to take the drug, difficulties in controlling drug use (e.g., continuing drug use despite harmful consequences, giving a higher priority to drug use than other activities and obligations), and possible tolerance or physical dependence. misuse and abuse of methylphenidate may cause increased heart rate, respiratory rate, or blood pressure; sweating; dilated pupils; hyperactivity; restlessness; insomnia; decreased appetite; loss of coordination; tremors; flushed skin; vomiting; and/or abdominal pain. anxiety, psychosis, hostility, aggression, and suicidal or homicidal ideation have also been observed with cns stimulants abuse and/or misuse. misuse and abuse of cns stimulants, including methylphenidate hcl extended-release tablets, can result in overdose and death [see overdosage (10)] , and this risk is increased with higher doses or unapproved methods of administration, such as snorting or injection. in two placebo-controlled human abuse potential studies, single oral doses of methylphenidate hcl extended-release tablets were compared to single oral doses of immediate-release methylphenidate (ir mph) and placebo in subjects with a history of recreational stimulant use to assess relative abuse potential. for the purpose of this assessment, the response for each of the subjective measures was defined as the maximum effect within the first 8 hours after dose administration. in one study (n=40), both methylphenidate hcl extended-release tablets (108 mg) and 60 mg ir mph compared to placebo produced statistically significantly greater responses on the five subjective measures suggestive of abuse potential. in comparisons between the two active treatments, however, methylphenidate hcl extended-release tablets (108 mg) produced variable responses on positive subjective measures that were either statistically indistinguishable from (abuse potential, drug liking, amphetamine and morphine benzedrine group [euphoria]) or statistically less than (stimulation – euphoria) responses produced by 60 mg ir mph. in another study (n=49), both doses of methylphenidate hcl extended-release tablets (54 mg and 108 mg) and both doses of ir mph (50 mg and 90 mg) produced statistically significantly greater responses compared to placebo on the two primary scales used in the study (drug liking, euphoria). when doses of methylphenidate hcl extended-release tablets (54 mg and 108 mg) were compared to ir mph (50 mg and 90 mg), respectively, methylphenidate hcl extended-release tablets produced statistically significantly lower subjective responses on these two scales than ir mph. methylphenidate hcl extended-release tablets (108 mg) produced responses that were statistically indistinguishable from the responses on these two scales produced by ir mph (50 mg). differences in subjective responses to the respective doses should be considered in the context that only 22% of the total amount of methylphenidate in methylphenidate extended-release tablets are available for immediate release from the drug overcoat [see system components and performance (11.1)] . although these findings reveal a relatively lower response to methylphenidate hcl extended-release tablets on subjective measures suggestive of abuse potential compared to ir mph at roughly equivalent total mph doses, the relevance of these findings to the abuse potential of methylphenidate hcl extended-release tablets in the community is unknown. physical dependence methylphenidate hcl extended-release tablets may produce physical dependence. 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. withdrawal signs and symptoms after abrupt discontinuation or dose reduction following prolonged use of cns stimulants including methylphenidate hcl extended-release tablets include dysphoric mood; depression; fatigue; vivid, unpleasant dreams; insomnia or hypersomnia; increased appetite; and psychomotor retardation or agitation. tolerance methylphenidate hcl extended-release tablets may produce tolerance. tolerance is a physiological state characterized by a reduced response to a drug after repeated administration (i.e., a higher dose of a drug is required to produce the same effect that was once obtained at a lower dose).

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals of new york llc - acitretin (unii: lch760e9t7) (acitretin - unii:lch760e9t7) - acitretin 10 mg - acitretin capsules are indicated for the treatment of severe psoriasis in adults. because of significant adverse effects associated with its use, acitretin capsules should be prescribed only by those knowledgeable in the systemic use of retinoids. in females of reproductive potential, acitretin capsules should be reserved for non-pregnant patients who are unresponsive to other therapies or whose clinical condition contraindicates the use of other treatments (see boxed contraindications and warnings — acitretin capsules can cause severe birth defects). most patients experience relapse of psoriasis after discontinuing therapy. subsequent courses, when clinically indicated, have produced efficacy results similar to the initial course of therapy. pregnancy category x ( see boxed contraindications and warnings) acitretin is contraindicated in patients with severely impaired liver or kidney function and in patients with chronic abnormally elevated blood lipid values (see boxed warnings: hepatotoxicity, warnings: lipids and possible cardiovascular effects , and precautions ). an increased risk of hepatitis has been reported to result from combined use of methotrexate and etretinate. consequently, the combination of methotrexate with acitretin is also contraindicated (see precautions: drug interactions ). since both acitretin and tetracyclines can cause increased intracranial pressure, their combined use is contraindicated (see warnings: pseudotumor cerebri ). acitretin is contraindicated in cases of hypersensitivity (e.g., angioedema, urticaria) to the preparation (acitretin or excipients) or to other retinoids.

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - lamotrigine extended-release tablets are indicated as adjunctive therapy for primary generalized tonic-clonic (pgtc) seizures and partial-onset seizures with or without secondary generalization in patients aged 13 years and older. lamotrigine extended-release tablets are indicated for conversion to monotherapy in patients aged 13 years  and older with partial-onset seizures who are receiving treatment with a single antiepileptic drug (aed). safety and effectiveness of lamotrigine extended-release tablets have not been established (1) as initial monotherapy or (2) for simultaneous conversion to monotherapy from 2 or more concomitant aeds. safety and effectiveness of lamotrigine extended-release tablets for use in patients younger than 13 years have not been established. lamotrigine extended-release tablets are 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, war

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals of new york llc - lamotrigine (unii: u3h27498ks) (lamotrigine - unii:u3h27498ks) - adjunctive therapy lamotrigine orally disintegrating tablets are indicated as adjunctive therapy for the following seizure types in patients aged 2 years and older: - partial-onset seizures. partial-onset seizures. - primary generalized tonic-clonic (pgtc) seizures. primary generalized tonic-clonic (pgtc) seizures. - generalized seizures of lennox-gastaut syndrome. generalized seizures of lennox-gastaut syndrome. monotherapy lamotrigine orally disintegrating tablets are 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. lam

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals of new york llc - methylphenidate hydrochloride (unii: 4b3sc438hi) (methylphenidate - unii:207zz9qz49) -  methylphenidate hydrochloride tablets are indicated for the treatment of: - attention deficit hyperactivity disorders (adhd) in pediatric patients 6 years and older and adults - narcolepsy - hypersensitivity to methylphenidate or other components of methylphenidate hydrochloride tablets. hypersensitivity reactions, such as angioedema and anaphylactic reactions, have been reported in patients treated with methylphenidate [see adverse reactions (6.1)]. - concomitant treatment with monoamine oxidase inhibitors (maois), or within 14 days following discontinuation of treatment with an maoi, because of the risk of hypertensive crises [see drug interactions (7.1)]. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to adhd medications, including methylphenidate hydrochloride, during pregnancy. healthcare providers are encouraged to register patients by calling the national pregnancy registry for adhd medications at 1-866-961-2388 or visiting https://

USA - engelska - NLM (National Library of Medicine)

amneal pharmaceuticals llc - lisdexamfetamine dimesylate (unii: sjt761gegs) (lisdexamfetamine - unii:h645gul8kj) - lisdexamfetamine dimesylate capsules are indicated for the treatment of: - attention deficit hyperactivity disorder (adhd) in adults and pediatric patients 6 years and older [see clinical studies (14.1)] - moderate to severe binge eating disorder (bed) in adults [see clinical studies (14.2)] .   limitations of use: - pediatric patients with adhd younger than 6 years of age experienced more long-term weight loss than patients 6 years and older [see use in specific populations (8.4)] . - lisdexamfetamine dimesylate capsules are not indicated or recommended for weight loss. use of other sympathomimetic drugs for weight loss has been associated with serious cardiovascular adverse events. the safety and effectiveness of lisdexamfetamine dimesylate capsules for the treatment of obesity have not been established [see warnings and precautions (5.2)] . lisdexamfetamine dimesylate is contraindicated in patients with: - known hypersensitivity to amphetamine products or other ingredients of lisdexamfetamine dimesylate capsules. anaphylactic reactions, stevens-johnson syndrome, angioedema, and urticaria have been observed in post-marketing reports [see adverse reactions (6.2)] . - patients taking monoamine oxidase inhibitors (maois), or within 14 days of stopping maois (including maois such as linezolid or intravenous methylene blue), because of an increased risk of hypertensive crisis [see warnings and precautions (5.7)  and drug  interactions (7.1) ] .   pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to adhd medications during pregnancy. healthcare providers are encouraged to register patients by calling the national pregnancy registry for psychostimulants at 1-866-961-2388 or visiting online at https://womensmentalhealth.org/clinical-and researchprograms/pregnancyregistry/adhd-medications/. risk summary the limited available data from published literature and post-marketing reports on use of  lisdexamfetamine dimesylate in pregnant women are not sufficient to inform a drug-associated risk for major birth defects and miscarriage. adverse pregnancy outcomes, including premature delivery and low birth weight, have been seen in infants born to mothers dependent on amphetamines [see clinical considerations] . in animal reproduction studies, lisdexamfetamine dimesylate (a prodrug of d-amphetamine) had no effects on embryo-fetal morphological development or survival when administered orally to pregnant rats and rabbits throughout the period of organogenesis. pre- and postnatal studies were not conducted with lisdexamfetamine dimesylate. however, amphetamine (d- to l- ratio of 3:1) administration to pregnant rats during gestation and lactation caused a decrease in pup survival and a decrease in pup body weight that correlated with a delay in developmental landmarks at clinically relevant doses of amphetamine. in addition, adverse effects on reproductive performance were observed in pups whose mothers were treated with amphetamine. long-term neurochemical and behavioral effects have also been reported in animal developmental studies using clinically relevant doses of amphetamine [see  data] . 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 amphetamines, such as lisdexamfetamine dimesylate, cause vasoconstriction and thereby may decrease placental perfusion. in addition, amphetamines can stimulate uterine contractions increasing the risk of premature delivery. infants born to amphetamine-dependent mothers have an increased risk of premature delivery and low birth weight. monitor infants born to mothers taking amphetamines for symptoms of withdrawal such as feeding difficulties, irritability, agitation, and excessive drowsiness. data animal data lisdexamfetamine dimesylate had no apparent effects on embryo-fetal morphological development or survival when administered orally to pregnant rats and rabbits throughout the period of organogenesis at doses of up to 40 and 120 mg/kg/day, respectively. these doses are approximately 5.5 and 33 times, respectively, the maximum recommended human dose (mrhd) of 70 mg/day given to adults, on a mg/m2 body surface area basis. a study was conducted with amphetamine (d- to l- enantiomer ratio of 3:1) in which pregnant rats received daily oral doses of 2, 6, and 10 mg/kg from gestation day 6 to lactation day 20. all doses caused hyperactivity and decreased weight gain in the dams. a decrease in pup survival was seen at all doses. a decrease in pup body weight was seen at 6 and 10 mg/kg which correlated with delays in developmental landmarks, such as preputial separation and vaginal opening. increased pup locomotor activity was seen at 10 mg/kg on day 22 postpartum but not at 5 weeks postweaning. when pups were tested for reproductive performance at maturation, gestational weight gain, number of implantations, and number of delivered pups were decreased in the group whose mothers had been given 10 mg/kg. a number of studies from the literature in rodents indicate that prenatal or early postnatal exposure to amphetamine (d- or d, l-) at doses similar to those used clinically can result in long-term neurochemical and behavioral alterations. reported behavioral effects include learning and memory deficits, altered locomotor activity, and changes in sexual function.   risk summary lisdexamfetamine is a pro-drug of dextroamphetamine. based on limited case reports in published literature, amphetamine (d-or d, l-) is present in human milk, at relative infant doses of 2% to 13.8% of the maternal weight-adjusted dosage and a milk/plasma ratio ranging between 1.9 and 7.5. there are no reports of adverse effects on the breastfed infant. long-term neurodevelopmental effects on infants from amphetamine exposure are unknown. it is possible that large dosages of dextroamphetamine might interfere with milk production, especially in women whose lactation is not well established. because of the potential for serious adverse reactions in nursing infants, including serious cardiovascular reactions, blood pressure and heart rate increase, suppression of growth, and peripheral vasculopathy, advise patients that breast-feeding is not recommended during treatment with  lisdexamfetamine dimesylate.   adhd safety and effectiveness of lisdexamfetamine dimesylate have been established in pediatric patients with adhd ages 6 to 17 years [see dosage and administration (2.3), adverse reactions (6.1), clinical  pharmacology (12.3) , and clinical studies (14.1)] . safety and effectiveness of lisdexamfetamine dimesylate have not been established in pediatric patients below the age of 6 years. safety and efficacy of lisdexamfetamine dimesylate were evaluated in a double-blind, randomized, parallel-group, placebo-controlled, fixed-dose study in pediatric patients ages 4 to 5 years with adhd, followed by a 1-year open-label extension study. in these studies, patients experienced elevated rates of adverse reactions, including weight loss, decreased bmi, decreased appetite, insomnia, infections (upper respiratory and nasopharyngitis), irritability, and affect lability. with the same lisdexamfetamine dimesylate dose, mean steady-state exposure of dextroamphetamine was approximately 44% higher in pediatric patients ages 4 to 5 years compared to the pediatric patients ages 6 to 11 years. bed safety and effectiveness of lisdexamfetamine dimesylate have not been established in pediatric patients with bed less than 18 years of age. growth suppression growth should be monitored during treatment with stimulants, including lisdexamfetamine dimesylate, and pediatric patients who are not growing or gaining weight as expected may need to have their treatment interrupted [see warnings and precautions (5.5)  and adverse reactions (6.1)] . juvenile animal data studies conducted in juvenile rats and dogs at clinically relevant doses showed growth suppression that partially or fully reversed in dogs and female rats but not in male rats after a four-week drug-free recovery period. a study was conducted in which juvenile rats received oral doses of 4, 10, or 40 mg/kg/day of lisdexamfetamine dimesylate from day 7 to day 63 of age. these doses are approximately 0.3, 0.7, and 3 times the maximum recommended human daily dose of 70 mg on a mg/m2 basis for a child. dose-related decreases in food consumption, bodyweight gain, and crown-rump length were seen; after a four-week drug-free recovery period, bodyweights and crown-rump lengths had significantly recovered in females but were still substantially reduced in males. time to vaginal opening was delayed in females at the highest dose, but there were no drug effects on fertility when the animals were mated beginning on day 85 of age. in a study in which juvenile dogs received lisdexamfetamine dimesylate for 6 months beginning at 10 weeks of age, decreased bodyweight gain was seen at all doses tested (2, 5, and 12 mg/kg/day, which are approximately 0.5, 1, and 3 times the maximum recommended human daily dose on a mg/m2 basis for a child). this effect partially or fully reversed during a four-week drug-free recovery period. clinical studies of lisdexamfetamine dimesylate did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. other reported clinical experience and pharmacokinetic data [see clinical pharmacology (12.3)] have not identified differences in responses between the elderly and younger patients. in general, dose selection for an elderly patient should start 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. due to reduced clearance in patients with severe renal impairment (gfr 15 to < 30 ml/min/1.73 m2 ), the maximum dose should not exceed 50 mg/day. the maximum recommended dose in esrd (gfr < 15 ml/min/1.73 m2 ) patients is 30 mg/day [see clinical pharmacology (12.3)] . lisdexamfetamine and d-amphetamine are not dialyzable.   lisdexamfetamine dimesylate capsules contain lisdexamfetamine, a prodrug of amphetamine, a schedule ii controlled substance. lisdexamfetamine dimesylate has a high potential for abuse and misuse which can lead to the development of a substance use disorder, including addiction [see warnings and precautions (5.1)] . lisdexamfetamine dimesylate can be diverted for non-medical use into illicit channels or distribution. abuse is the intentional non-therapeutic use of a drug, even once, to achieve a desired psychological or physiological effect. 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. drug addiction is a cluster of behavioral, cognitive, and physiological phenomena that may include a strong desire to take the drug, difficulties in controlling drug use (e.g., continuing drug use despite harmful consequences, giving a higher priority to drug use than other activities and obligations), and possible tolerance or physical dependence. misuse and abuse of lisdexamfetamine, a prodrug of amphetamine, may cause increased heart rate, respiratory rate, or blood pressure; sweating; dilated pupils; hyperactivity; restlessness; insomnia; decreased appetite; loss of coordination; tremors; flushed skin; vomiting; and/or abdominal pain. anxiety, psychosis, hostility, aggression, and suicidal or homicidal ideation have also been observed with cns stimulants abuse and/or misuse. misuse and abuse of cns stimulants, including lisdexamfetamine dimesylate, can result in overdose and death [see overdosage (10)] , and this risk is increased with higher doses or unapproved methods of administration, such as snorting or injection. studies of lisdexamfetamine dimesylate in drug abusers a randomized, double-blind, placebo-control, cross-over, abuse liability study in 38 patients with a history of drug abuse was conducted with single-doses of 50, 100, or 150 mg of lisdexamfetamine dimesylate, 40 mg of immediate-release d-amphetamine sulphate (a controlled ii substance), and 200 mg of diethylpropion hydrochloride (a controlled iv substance). lisdexamfetamine dimesylate 100 mg produced significantly less “drug liking effects” as measured by the drug rating questionnaire-subject score, compared to d-amphetamine 40 mg; and 150 mg of lisdexamfetamine dimesylate demonstrated similar “drug-liking effects” compared to 40 mg of d-amphetamine and 200 mg of diethylpropion. intravenous administration of 50 mg lisdexamfetamine dimesylate to individuals with a history of drug abuse produced positive subjective responses on scales measuring “drug liking”, “euphoria”, “amphetamine effects”, and “benzedrine effects” that were greater than placebo but less than those produced by an equivalent dose (20 mg) of intravenous d-amphetamine.   physical dependence lisdexamfetamine dimesylate may produce physical dependence. 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. withdrawal signs and symptoms after abrupt discontinuation or dose reduction following prolonged use of cns stimulants including lisdexamfetamine dimesylate include dysphoric mood; depression; fatigue; vivid, unpleasant dreams; insomnia or hypersomnia; increased appetite; and psychomotor retardation or agitation. tolerance lisdexamfetamine dimesylate may produce tolerance. tolerance is a physiological state characterized by a reduced response to a drug after repeated administration (i.e., a higher dose of a drug is required to produce the same effect that was once obtained at a lower dose).