In the United States, Memantine was approved for medical use in 2003. This drug is a member of a class of drugs called NMDA receptors antagonists. It is schedule H drug and is sold on prescription at local pharmacy stores and online drugstores. The molecular formula and the molecular weight are C12H21N•HCl and 215.76 respectively. This medication is usually prescribed to Alzheimer’s patients who are not able to tolerate AChE (acetylcholinesterase) inhibitors. Memantine improves mood, cognitive ability, and performance in individuals suffering from moderate to severe Alzheimer’s disease. This drug is not useful for individuals suffering from a mild form of Alzheimer’s. This medicine should be taken mouth and should be taken only if improvement in symptoms is observed. Memantine Generic should be consumed only after consulting your healthcare provider. The onset of action and duration of effect of Memantine is not clinically determined.