Drugs in the United States

In the United States, the Federal Food, Drug, and Cosmetic Act defined the word "drug" as an "article intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease in man or other animals" and those "(other than food) intended to affect the structure or any function of the body of man or other animals." Consistent with that definition, the U.S. separately defines narcotic drugs and controlled substances, which may include non-drugs, and explicitly excludes tobacco, caffeine and alcoholic beverages.