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': 'Acute cholinesterase inhibitors intoxication include all of the following except \nSelect and explain. \nA. Salivation, sweating, B. Mydriasis, C. Bronchial constriction, D. Vomiting and diarrhea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cholinesterase inhibitors have cholinomimetic actions. The major source of such intoxications is pesticide use in agriculture.The dominant initial signs are those of muscarinic excess: miosis, salivation, sweating, bronchial constriction, vomiting, and diarrhea. Central nervous system involvement (cognitive disturbances, convulsions, and coma) usually follows rapidly, accompanied by peripheral nicotinic effects, especially depolarizing neuromuscular blockade.Katzung 13e pg:118', 'role': 'assistant'}]