This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Drugs that can enhance action of sulfonylurea include the following, except: \nSelect and explain. \nA. Salicylates, B. Diazoxide, C. Propranolol, D. Cimetidine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Drugs that enhance SU action (may precipitate hypoglycaemia) are-\n(a) Displace from protein binding: Phenylbutazone, sulfinpyrazone, salicylates, sulfonamides.\n(b) Inhibit metabolism/excretion: Cimetidine, ketoconazole, sulfonamides, warfarin, chloramphenicol, acute alcohol intake (also synergises by causing hypoglycaemia).\n(c) Synergise with or prolong pharmacodynamic action: Salicylates, propranolol (cardioselective antihypertensives, lithium, theophylline, alcohol (by inhibiting gluconeogenesis).\nMinoxidil and diazoxide are K+ channel\xa0openers, which\xa0were\xa0used\xa0earlier in\xa0severe hypertension and\xa0hypertensive\xa0 emergencies.\n\xa0\nReference: Essentials of Medical Pharmacology Eighth Edition KD\xa0 TRIPATHI\xa0 page no 296', 'role': 'assistant'}]