This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'Antidote of datura poisoning is \nSelect and explain. \nA. Neostigmine, B. Pyridostigmine, C. Physostigmine, D. Atropine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Datura is atropine .antidote is physostigmine because it is a teiary amine which can cross BBB and neutralize central effects produced by atropine Ref: KDT 6th ed pg 101-102', 'role': 'assistant'}]