User:Mr. Ibrahem/Memantine

Memantine is a medication used to treat moderate-to-severe Alzheimer's disease. It is less preferred than acetylcholinesterase inhibitors such as donepezil. Treatment should only be continued if beneficial effects are seen. It is taken by mouth.

Common side effects include headache, constipation, sleepiness, and dizziness. Severe side effects may include blood clots, psychosis, and heart failure. It is believed to work by blocking NMDA receptors.

Memantine was approved for medical use in the United States in 2003. It is available as a generic medication. A month supply in the United Kingdom costs the NHS about 1.60 GBP as of 2019. In the United States the wholesale cost of this amount is about US$5.50. In 2017, it was the 149th most commonly prescribed medication in the United States, with more than four million prescriptions.