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': 'Cholinomimetic drugs can be used for the treatment of all the following conditions EXCEPT \nSelect and explain. \nA. Closed angle Glaucoma, B. Bradycardia, C. Cobra bite, D. Myasthenia gravis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ref: 7th edition KD Tripathi (page no:103) ACh hyperpolarizes SA nodal cells, as a results bradycardia occur.so cholinomimetics can't be used for bradycardia. Anticholinergics like atropine should be used for bradycardia Cardiac muscuranic receptor is M2 subtype", 'role': 'assistant'}]