This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
Therapeutic indication of Donepezil: 
Select and explain. 
A. Parkinsonism, B. Alzheimer's, C. Multiple sclerosis, D. Myasthenia gravis
B: Alzheimer's
Answer: B: Alzheimer's 
Explanation: Ans. B. Alzheimer'sDonepezil, rivastigmine and galantamine are the drugs given in case of Alzheimer's, they are cerebro selective anticholinesterase which increase the level of acetylcholine in the cortex.