This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Drug used for post operative reversal of muscular paralysis - \nSelect and explain. \nA. Neostignuine, B. Pyridostigmine, C. Physostigmine, D. D tubocurare', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Neostigmine o Neostigmine is routinely used after pancuronium and other long acting blocker to hasten recovery at the end of operation. It is preferred over physostigmine because it does not penetrate brain.", 'role': 'assistant'}]