Yohimbine, also known under the outdated names quebrachin, aphrodin, corynine, yohimvetol, and hydroergotocin, is the principal alkaloid of the bark of the West-African tree Pausinystalia yohimbe Pierre (formerly Corynanthe yohimbe), family Rubiaceae (Madder family). There are 31 other yohimbane alkaloids found in Yohimbe.
Yohimbine is a selective competitive alpha2-adrenergic receptor antagonist and is used for treating erectile dysfunction. It is claimed to be an aphrodisiac. It is also used as a weight loss supplement as it increases noradrenaline (norepinephrine) levels.
More on [ Yohimbine ]

Yohimbine - Clinical Trials - Page provides a comparison of ten clinical trials in which yohimbine had been used as treatment for erectile dysfunction.
Meta Description: [ Yohimbine for erectile dysfunction update ]
Yohimbine - MedlinePlus - Patient information on the drug; focus on proper use, precautions, and side effects.
Meta Description: [ Yohimbine (Systemic) ]
Yohimbine - RxList - Package insert-style information on the drug; covers clinical pharmacology, indications, side effects, and drug interactions.