All are cholinergic agents except I
Refer kDT 6/e p 472,473 Donepazil, rivastigmine, gallantamine and tacrine are cholinergic drugs( due to inhibition of cholenesterase enzyme)useful for Alzheimer's disease Memantine is an NMDA blocker, used for Alzheimer's disease
Galantamine
Donepezil
Tacrine
Memantine
Autonomic nervous system