(pharmacology) A drug that blocks the activity of alpha-receptors and is used in the form of its hydrochloride C₁₈H₂₂ClNO·HCl especially to treat hypertension and sweating due to pheochromocytoma.
zanthoxylum
zanthoxylum
noun
Any of the genus Zanthoxylum of deciduous and evergreen trees and shrubs in the citrus or rue family.
