Labetalol

Labetalol (Normodyne, Trandate, fixed combination with hydrochlorothiazide: Normozyde) is an alpha-1 and beta adrenergic blocker used to treat high blood pressure. It works by blocking these adrenergic receptors, which slows sinus heart rate, decreases peripheral vascular resistance.It has a particular indication in the treatment of pregnancy-induced hypertension.
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Labetalol /la·bet·a·lol/ a beta-adrenergic blocking agent with some alpha-adrenergic blocking activity; used in the form of the hydrochloride salt [more]Labetalol - Community and Resources

Noun
1. antihypertensive drug (trade names Trandate and Normodyne) that blocks alpha and beta-adrenergic receptors of the sympathetic nervous system (leading to a decrease in blood pressure)
(synonym) labetalol hydrochloride, Trandate, Normodyne
(hypernym) blocker, blocking agent