Clortermine hydrochloride (Voranil) is a non-amphetamine anorexigenic agent. Voranil, a sympathomimetic amine, is indicated for short-term adjunctive treatment of exogenous obesity. Its long duration of action permits once-a-day dosage. In a large number of patients studied, Voranil was found to be superior to placebo in weight reduction. Insomnia, dry mouth, palpitations and tachycardia have been reported in a small percentage of patients taking the drug. Voranil was originally developed by Ciba Pharmaceuticals Corporation and transferred to USV Pharmaceuticals Corporation in December 1971, as a result of a product exchange agreement.