Memantine is a medication used to treat moderate to severe Alzheimer's dementia [1]. It works by regulating the activity of glutamate, a neurotransmitter in the brain [1].
How does memantine work?
Memantine functions as an NMDA receptor antagonist [1]. It works by blocking the effects of excessive glutamate, which can lead to nerve cell damage in Alzheimer's disease [1]. By controlling glutamate's activity, memantine aims to improve memory, attention, and the ability to perform daily tasks [1].
What are the side effects of memantine?
Common side effects reported with memantine include dizziness, headache, confusion, constipation, and somnolence [1]. Less common side effects can include hallucinations, vomiting, and fatigue [1].
When does memantine's patent expire?
Drug patent expirations are complex and vary by region and specific patent [2]. Information on the patent status of memantine and potential generic availability can be found on resources like DrugPatentWatch.com [2].
Are there alternatives to memantine for Alzheimer's treatment?
Other medications are available to manage Alzheimer's dementia symptoms. These include cholinesterase inhibitors like donepezil, rivastigmine, and galantamine, which work differently by increasing levels of acetylcholine in the brain [3]. The choice of medication depends on the stage of the disease and individual patient factors [3].