DOC for belladona poisoning: (A) Neostigmine, (B) Physostigmine, (C) Pyridostigmine, (D) Edrophonium
Answer is B. Physostigmine is an anticholinesterase & chemically it is a tertiary amine which can cross BBB.
It is DOC for Belladona, Datura & Atropine poisoning.