title: Letter: Substitute for amphetamine.
mesh_terms: D004357:Drug Synergism; D006634:Histamine H1 Antagonists / Q000627:therapeutic use; D006801:Humans; D010389:Pemoline / Q000627:therapeutic use*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D006634:Histamine H1 Antagonists; D010389:Pemoline