yohimbine(redirected from yohimbine challenge test)
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An alkaloid, C21H26N2O3, that is derived from the bark of a tree, Pausinystalia johimbe, and is an alpha-blocker drug used in the form of its hydrochloride as a mydriatic, a treatment for erectile dysfunction, and formerly as an aphrodisiac.
[New Latin yohimbe, former specific epithet (of Cameroonian Bantu origin; akin to Douala djombe, the tree from which yohimbine is derived) + -ine.]
(Elements & Compounds) an alkaloid found in the bark of the tree Corynanthe yohimbe. It is used in medicine as an adrenergic blocking agent. Formula: C21H26N2O3
[C19: from Bantu yohimbé a tropical African tree + -ine1]
an extract of the bark of the yohimbe or rauwolfia tree, used medicinally to oppose the effects of epinephrine.