2008, "Chromium sorption and Cr(VI) reduction to Cr(III) by grape stalks and yohimbe
bark," Bioresource Technol.
And the ingredients include yohimbe
, the subject of numerous clinical trials for treatment of impotence.
This herb is derived from bark shavings of a West African tree, Pausinystalia yohimbe
Sympathomimetic Herbs Cayenne Ephedra Night bloom cereus Kola nut Yohimbe
* Box 5.
The off-label use of a number of drugs for this purpose is sometimes practiced, including yohimbe
, bupropion (an agonist of norepinephrine and dopamine), ephedrine, and sildenafil (Viagra, Pfizer).
Extracts from the bark of the Pausinystalia yohimbe
(popularly known in Cameroon as the African viagra), are consumed locally as a cure for many ailments and is sold in North America and Europe as an aphrodisiac and a stimulant in soft drinks.
No published research has looked at over-the-counter supplements that contain yohimbe
is a tree that grows in West Africa.
The proposal also suggested that ephedrine should not be combined with other stimulants such as caffeine or yohimbe
Taken with Yohimbe
, it is said to balance the hormones, help increase testosterone levels, tone the nervous system, restore libido, and help achieve and maintain a healthy erection.
To name but a few examples, products containing yohimbe
extracts, such as those taken for male impotence, have been shown to be able to induce hypertension and, when taken by patients with allergic dermatitis, have also been associated with bronchospasm.
Alpha-2-receptors are blocked by Yohimbine, an alkaloid obtained from the bark of the African tree, Coryanthe yohimbe
(Crenshaw and Goldberg, 1996; Morales, 2000).