<prompt> Therapeutic indication of Donepezil:ParkinsonismAlzheimersMultiple sclerosisMyasthenia gravis  <response>: Ans. B. AlzheimersDonepezil, rivastigmine and galantamine are the drugs given in case of Alzheimers, they are cerebro selective anticholinesterase which increase the level of acetylcholine in the cortex. 