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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which drug is not used in Alzhermer's disease
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The correct answer is  Ans. is 'a' i.e., Tacrine o Recently 4 cholinergic activators (cerebroselective anticholinesterase drugs) are being approved by UK & USA for use in AD Tacrine, Rivastigmine, Donepezil, Galantamine. o Because of hepatotoxicity, and requirement of frequent obsing, tacrine is less often used than other agents.