All are cholinergic agents except -: (A) Galantamine, (B) Donepezil, (C) Tacrine, (D) Memantine
Answer is D. Ans. is 'd' i.e., Memantine Cognition Enhancers (Cerebroactive drugs) o These are a heterogenous group of drugs developed for use in dementia and other cerebral disorders. o Drugs are 1. Cholinergic activaters --> Tacrine, Rivastigmine, Donepezil, Galantamine. 2. Glutamate (NMDA) antagonist --4 Memanite 3. Miscellaneous --> Piracetam, Pyritinal (pyrithioxine), Piribedil, Dihydroergotoxine (Codergocrine).