title: Letter: Substitute for amphetamine.
mesh_terms: D000661:Amphetamine; D004335:Drug and Narcotic Control; D006801:Humans; D010389:Pemoline; D019966:Substance-Related Disorders; D013566:Sympathomimetics
chemical_list: D013566:Sympathomimetics; D010389:Pemoline; D000661:Amphetamine