Pharmacology General c5a62ee8 DOC for belladona poisoning A Neostigmine B Physostigmine C Pyridostigmine D Edrophonium High-Yield Explanation Physostigmine is an anticholinesterase & chemically it is a tertiary amine which can cross BBB. It is DOC for Belladona, Datura & Atropine poisoning.