and addicted smokers have very active receptors of this kind. Rimonabant is a selective CB1 endocannabinoid receptor antagonist indicated for the treatment of obesity. It works by blocking endogenous cannabinoid binding to neuronal CB1 receptors. Activation of these receptors by endoegenous cannabinoids, such as anadamide, increases appetite. It is the most advanced endocannabinoid receptor antagonist in clinical development and offers a novel therapeutic approach to appetite control and weight