Yohimbe is the name of an evergreen tree found in parts of central and western Africa. The bark of yohimbe contains a chemical called yohimbine, which is used to make medicine. Yohimbine hydrochloride (Aphrodyne, Yocon) is a form of yohimbine that is a prescription drug in the US.

Yohimbe supplements often list yohimbe bark extract or yohimbine as the active ingredient. However, some of these products might not provide accurate information about the amount of yohimbine in the supplement. Also, some yohimbe supplements list yohimbine hydrochloride as an active ingredient. Yohimbe products containing man-made yohimbine hydrochloride as an ingredient are not legal to sell as a dietary supplement in the US.

Yohimbine is a potent and relatively nonselective alpha 2-adrenergic receptor (AR) antagonist, with IC50 of 0.6 μM. IC50 value: 0.6 uM Target: alpha 2-adrenergic receptor in vitro: Yohimbine inhibits alpha2-receptor antagonist with Ki of 1.05 nM, 1.19 nM, and 1.19 nM for α2A, α2B, α2C, respectively. Yohimbine also inhibits 5-HT1B with Ki of 19.9 nM. Yohimbine acts to block the lowering of cAMP by alpha-2 adrenoceptor agonists. yohimbine actually causes a pronounced lowering of tyrosinase activity. in vivo: Yohimbine is an antagonist at alpha2-noradrenaline receptors with putative panicogenic effects in human subjects, was administered to Swiss-Webster mice at doses of 0.5, 1.0, and 2.0 mg/kg. Yohimbine potentiates active defensive responses to threatening stimuli in Swiss-Webster mice

17alpha-Hydroxy-yohimban-16alpha-carboxylic acid methyl ester (cas# 146-48-5) is a useful research chemical.Also, it is an intermediate used in the synthesis of Corynanthine (C696915), which is a alkaloids from root samples of R. serpentina and it possesses cytotoxic activities against human breast cancer cells.

(1). Yohimbine is born in South Africa and known worldwide as an excellent aphrodisiac.
(2). Yohimbine can also elevate mood, reduce anxiety and depression, prevent heart attacks helps building muscles.
(3). Yohimbine is decreasing fat synthesis and working as a great anti-depressant.
(4). Recent studies suggest the drug may be effective in the treatment of male impotence especially that associated with diabetes.
1.  Applied in food field, Yohimbine powder mainly to be used as food additives.
2.  Applied in health product field, Yohimbine powder as a male health products to increase sexual powers;
3.  Applied in pharmaceutical field, Yohimbine powder can treat various types of male impotence and sexual dysfunction.