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': 'Propanolol can be used in all of the following conditions EXCEPT: \nSelect and explain. \nA. Thyrotoxicosis, B. Variant angina, C. Migraine, D. Hypeention', 'role': 'user'}, {'content': "Answer: B \nExplanation: ref;KD Tripathi 7the edition pharmacology (page no;147,149) Propranolol exacerbates variant (Prinzmetal' s) angina due to unopposed a mediated coronary constriction. uses of propranolol are Hypeension, Angina pectoris, Migraine, thyrotoxicosis, Pheochromocytoma, Glaucoma, MI, Cardiac Arrhythmias,", 'role': 'assistant'}]