Also found in: Medical, Encyclopedia, Wikipedia.


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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(yoʊˈhɪm bin)

an extract of the bark of the yohimbe or rauwolfia tree, used medicinally to oppose the effects of epinephrine.
[1895–1900; yohimb (e) + -ine2; perhaps orig. formed in German]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


n yohimbina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
Immobilization of Rocky Mountain elk with Telazol and xylazine hydrochloride and antagonism by yohimbine hydrochloride.
Effects of yohimbine on isolation-induced aggression, exploration, social attraction and olfactory preference.
Both caffeine and yohimbine, a drug with similar anxiety-producing effects, may increase the flow of calcium into neurons, a process controlled by adenosine, say the Yale scientists.
The inhibition of either water or hypertonic NaCl intake with forebrain injections of moxonidine or clonidine was reduced by pretreatment with injections of a2adrenoceptor antagonists, like yohimbine or RX 821002 (1,9,11-13).
Xylazine-ketamine anaesthesia and its reversal by yohimbine in sloth bear.
Potential cardiovascular risks were also raised with a product combining caffeine with synephrine (from the ingredient bitter orange) and with two products containing yohimbine, an erectile dysfunction remedy.
Moreover, some botanicals--such as black cohosh, water hemlock, ephedra, kava kava, yohimbine, guarana, and ginkgo seeds--are known to induce seizures, which could negate an AED's efficacy.
What It Might Do: Small amounts of yohimbine, the active compound in yohimbe bark, increase sexual drive in male rats.
Moreover, PEF-induced antinociception in the capsaicin test was insensitive to naloxone, yohimbine or methylene blue, but was significantly antagonized by atropine and glibenclamide.
(6) The aphrodisiac Yohimbine, a sexual stimulant, experienced even more drastic declines.
Called yohimbine, the drug is effective in people with a variant of a gene called ADRA2A, researchers report October 8 in Science Translational Medicine.
* Yohimbine. The use of this herb in human pregnancies has not been reported.