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': 'In oral poisoning with carbamate insecticide_______ may be hazardous \nSelect and explain. \nA. Pralidoxime, B. Atropine, C. Magnesium sulfate purgative, D. Gastric lavage with activated charcoal', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer kDT 7/e p 111 Oximes are in effective in carbamate poisoning. Rathre, this can worsen the poisoning due to weak anticholinesterase activity by its own', 'role': 'assistant'}]