Final answer:
Donepezil is the FDA-approved medication for Alzheimer's disease, working to slow its progression by enhancing acetylcholine neurotransmission. It's marketed as Aricept.
Step-by-step explanation:
The medication approved by the FDA for Alzheimer's disease is donepezil. Donepezil, marketed under the brand name Aricept, is a cholinesterase inhibitor that works by increasing the levels of acetylcholine in the brain, which can help manage symptoms of Alzheimer's disease. While there is no cure for the disease, treatments like donepezil aim to slow down its progression. Other medications such as ibuprofen, aspirin, and penicillin are not approved for treating Alzheimer's disease. Alongside medications, behavioral therapies and lifestyle changes are also encouraged to help manage the condition.