Yohimbine is a pharmacologically active alkaloid derived from the bark of the Yohimbe tree, used primarily as a pre-treatment stimulant and, in some contexts, as a fat-burner. It functions as an alpha-2 adrenergic antagonist, impacting vascular tone and sympathetic arousal. In pharmacology, it is studied for potential effects on sexual function and as a research tool, though it requires careful dosing and medical supervision.
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