Country: Канада
Језик: Енглески
Извор: Health Canada
MEMANTINE HYDROCHLORIDE
LUNDBECK CANADA INC
N06DX01
MEMANTINE
10MG
TABLET
MEMANTINE HYDROCHLORIDE 10MG
ORAL
30
Prescription
MISCELLANEOUS CENTRAL NERVOUS SYSTEM AGENTS
Active ingredient group (AIG) number: 0150423001; AHFS:
APPROVED
2004-12-08
PRODUCT MONOGRAPH PR Ebixa ® Memantine Hydrochloride Tablets 10 mg N-methyl-D-aspartate (NMDA) receptor antagonist Lundbeck Canada Inc. Date of revision: 1000 De La Gauchetière Street West May 14, 2015 Suite 500 Montreal (Quebec), Canada H3B 4W5 Control No. 181785 - 1 - NAME OF DRUG PR Ebixa ® Memantine Hydrochloride Tablets 10 mg THERAPEUTIC CLASSIFICATION N-methyl-D-aspartate (NMDA) receptor antagonist A CTION AND C LINICAL P HARMACOLOGY Persistent activation of the central nervous system N-methyl-D-aspartate (NMDA) receptors by the excitatory amino acid glutamate has been hypothesized to contribute to the symptomatology of Alzheimer’s disease. Memantine is postulated to exert its therapeutic effect through its action as a low to moderate affinity uncompetitive (open channel) NMDA receptor antagonist, which binds preferentially to the NMDA receptor-operated cation channels. It blocks the effects of pathologically elevated sustained levels of glutamate that may lead to neuronal dysfunction. There is no clinical evidence that memantine prevents or slows neurodegeneration or alters the course of the underlying dementing process in patients with Alzheimer’s disease. Memantine exhibits low to negligible affinity for other receptors (GABA, benzodiazepine, dopamine, adrenergic, noradrenergic, histamine and glycine) or voltage-dependent Ca 2+ , Na + or K + channels. In addition, it does not directly affect the acetylcholine receptor or cholinergic transmission, which have been implicated in the cholinomimetic side effects (e.g., increased gastric acid secretion, nausea and vomiting) seen with acetylcholinesterase inhibitors. Memantine showed antagonist effects at the 5HT 3 receptor with a potency similar to that for the NMDA receptor. - 2 - In vitro studies have shown that memantine does not affect the reversible inhibition of acetylcholinesterase by donepezil or galantamine. P HARMACOKINETICS A BSORPTION Orally administered memantine is completely absorbed. Oral bioavailability is almost 100%. Time to maximum p Прочитајте комплетан документ