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': 'Drug not contraindicated in a pregnant lady for Hypeension: March 2009 \nSelect and explain. \nA. Sodium nitroprusside, B. Hydralazine, C. ACE inhibitors, D. Indapamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B: Hydralazine Intravenous form of hydralazine is useful when treating severe hypeension due to preeclampsia/eclampsia. It has got a long record of safe use during pregnancy, but troublesome adverse effects occur. It decreases systemic resistance through direct vasodilation of aerioles.', 'role': 'assistant'}]