This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
[{'content': 'A28-year-old farmer is convulsing, with 100bpm heart rate, BP180/100, diarrhea, vomiting and urination. Pupil are pin point. Drug poisoning suspected is: \nSelect and explain. \nA. Aspirin poisoning, B. Amphetamine, C. OPC poisoning, D. Atropine poisoning', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. OPC poisoningAll the symptoms listed in the questions are symptoms associated with cholinergic effects which is OPC poisoning.it should not be confused with atropine poisoning where effects are anticholinergic.', 'role': 'assistant'}]