This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Histamine, 5-HT and PGs, Subject name: Pharmacology
[{'content': 'Drugs used in migraine prophylaxis are all except: \nSelect and explain. \nA. Flunarizine, B. Propanolol, C. Cyproheptadine, D. Sumatriptan', 'role': 'user'}, {'content': "Answer: D \nExplanation: Drugs used for migraine prophylaxis: - A : Antiepileptic drug- B : Beta blocker : Propranolol, botulinum toxin- C : CCB: flunarizine, cyproheptadine, clonidine For acute migraine attack : We give sumatriptan and ergotamine.Triptans are contraindicated in patient with coronary aery disease due to it's vasospasm effect.", 'role': 'assistant'}]