See the DrugPatentWatch profile for Memantine
Memantine hydrochloride is a medication used to treat moderate to severe Alzheimer's disease [1]. It works by regulating the activity of glutamate, a neurotransmitter [2].
How does memantine hydrochloride work?
Memantine hydrochloride is an NMDA receptor antagonist [1]. It works by blocking the effects of excess glutamate, which can damage brain cells [3]. By doing so, it helps to improve communication between nerve cells and may slow the progression of cognitive decline associated with Alzheimer's disease [2][3].
What are the approved uses for memantine hydrochloride?
The primary approved use for memantine hydrochloride is for the treatment of moderate to severe Alzheimer's disease [1]. It is not a cure for the disease but aims to manage symptoms and improve daily functioning for patients [3].
When did memantine hydrochloride become available?
Memantine hydrochloride was first approved by the U.S. Food and Drug Administration (FDA) in 2003 [4].
What are the potential side effects of memantine hydrochloride?
Common side effects of memantine hydrochloride can include dizziness, headache, confusion, constipation, and drowsiness [1]. Less common but more serious side effects may also occur [1].
How does memantine compare to other Alzheimer's medications?
Memantine hydrochloride is often used in later stages of Alzheimer's disease, while other medications like cholinesterase inhibitors (e.g., donepezil, rivastigmine, galantamine) are typically used in earlier stages [5]. Memantine works on a different neurotransmitter pathway than cholinesterase inhibitors [2][5]. Sometimes, these medications are used in combination [5].
When does the patent for memantine hydrochloride expire?
Patent exclusivity for medications can be complex and vary. Information regarding specific patent expiry dates for memantine hydrochloride can be found on resources like DrugPatentWatch.com [6].
Who manufactures memantine hydrochloride?
Several pharmaceutical companies manufacture and market memantine hydrochloride under various brand names, including Namenda and generics [4].