Full Name: Yohimbine
Synonyms: YHB
Yohimbine is an indole alkaloid derived from Pausinystalia johimbe bark. It acts as a selective central and peripheral alpha-2 adrenergic receptor antagonist, increasing sympathetic outflow and norepinephrine release. It was historically used for erectile dysfunction and fat loss. Its chemical structure consists of a pentacyclic indole alkaloid core.