Indole alkylamine from West African<unk>  tree (Corynanthe yohimbe)
α2-adrenergic antagonist with cholinergic activity
Commonly used for treating erectile dysfunction. Also, for other uses (eg, postural hypotension); marketed as athletic performance enhancers, dieting agent.
Can be obtained via prescription.
Yohimbine toxicity
Clonidine toxicity
Anticholinergic toxicity
Flunitrazepam toxicity
Tricyclic antidepressant toxicity
Antipsychotic toxicity
Cholinergic crisis
Mescaline toxicity