Donepezil Alzheimer's drug. Computer model of a molecule of the Alzheimer's drug donepezil. Atoms are represented as spheres and are colour-coded: carbon (green), hydrogen (white), nitrogen (purple) and oxygen (orange). Donepezil belongs to a class of drugs known as cholinesterase inhibitors. It inhibits the enzyme acetylcholinesterase, which destroys the neurotransmitter acetylcholine. Lack of neurotransmitters is thought to play a role in Alzheimer's disease, a common cause of dementia in the elderly. Donepezil does not cure the disease, or slow its progression, but it can improve cognitive function.
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