from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A poisonous alkaloid, C21H26N2O3, derived from the bark of a tree, Corynanthe yohimbe, and formerly used as an aphrodisiac, a local anesthetic, and a mydriatic.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A tryptamine alkaloid, the active chemical constituent of the medicinal herb Pausinystalia yohimbe: a stimulant and supposed aphrodisiac.

from The Century Dictionary and Cyclopedia

  • n. A colorless dextrorotatory alkaloid, C23A32O4N2, found, together with yohimbenine, in the bark and leaves of the yohimbé or yumbehoa-tree, belonging to the Rubiaceæ. It crystallizes in needles and melts at 234° C.


New Latin yohimbe, specific epithet of Corynanthe yohimbe, species of tree from which it is derived (of Cameroonian Bantu origin; akin to Duala (Bantu language of Cameroon) djombe) + -ine2.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Yohimbe contains yohimbine, which is the alkaloid the FDA has allowed for treatment of erectile dysfunction.

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  • Nearly every energy and weight-loss drink contains some combination of the industry's go-to stimulants: yerba maté, green tea, yohimbine a stimulant found in yohimbe tree bark and good old-fashioned caffeine.

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  • The problem is, yohimbine is not safe for everyone.

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  • Similar to Viagra, the hot new prescription drug, yohimbine also increases blood flow to the penis.

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  • However, yohimbine is potentially toxic to the liver and can cause a sudden decline in blood pressure.

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  • A weaker form of yohimbine called yohimbe is sold over the counter, and may not work as well.

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  • A chemical derived from yohimbe, yohimbine, is an FDA-approved drug for impotence; it is available by prescription only.

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  • The over-the-counter yohimbe products do not cause such serious side effects, but may not be as effective as yohimbine.

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