Pharmacology Which of the following drugs is used in severe hypertensive emergencies, is very short acting and must be given by i.v. infusion ? A Diazoxide B Hydralazine C Labetalol D Nitroprusside 💡 Explanation Which of the following drugs is used in severe hypertensive emergencies, is very short acting and must be given by i.v. infusion ? ✓ Correct Answer: D. Nitroprusside