Reduces blood pressure primarily by directly decreasing hea rate alone –
Correct Answer: Propranolol
Description: Ans. is 'a' i.e., Propranolol o Methyldopa is useful in the treatment of mild to moderately severe hypeension. It lowers blood pressure chiefly by reducing peripheral vascular resistance, with a variable reduction in hea rate and cardiac output. o Prazosin and nitroprusside are vasodilators and produce reflex tachycardia instead of causing bradycardia. o Propranolol is a non selective beta blocker and acts mainly by decreasing hea rate.
Category:
Pharmacology
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