Surinabant is a cannabinoid receptor type 1 antagonist developed by Sanofi-Aventis for the treatment for nicotine addiction and obesity. In preclinical models, Surinabant reduced body weight gain, as well as plasma glucose levels and triglycerides. Surinabant also reduced insulin and leptin secretion and increased adiponectin and corticosterone levels in rats. Phase I and phase II studies showed good clinical safety profiles in healthy subjects and in obese subjects, although doses higher than 10mg/day were associated with gastrointestinal events and sleep disorders.