noun. 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).
- labetalol hydrochloride
- antihypertensive drug
- blocking agent
Example sentences of the word labetalol
1. Noun, singular or mass
Beta blockers that also block alpha receptors include carvedilol and labetalol.