SURGEON GENERAL'S WARNING: Cigarette smoke contains carbon monoxide. Cigars are not a safe alternative to cigarettes. Smokeless Tobacco can cause mouth cancer, gum disease and tooth loss. Smokeless Tobacco is not a safe alternative to cigarettes. Smokeless tobacco is addictive. Electronic cigarettes are not a smoking cessation product and have not been evaluated by the Food and Drug Administration, nor are they intended to treat, prevent or cure any disease or condition.