Which drug is approved for the treatment of all three stages of Alzheimer's disease?

Name: Which drug is approved for the treatment of all three stages of Alzheimer's disease?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Donepezil (Aricept) is the only drug approved for the treatment of all three stages of Alzheimer's disease. Galantamine is approved for mild to moderate stages, tacrine is rarely used due to its hepatotoxicity, and rivastigmine is approved for mild to moderate stages but not severe.

Which Drug Is Approved for the Treatment of All Three