Theophylline derivatives: a current review.
D000284:Administration, Oral; D000628:Aminophylline / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy*; D004359:Drug Therapy, Combination; D006801:Humans; D007275:Injections, Intravenous; D013806:Theophylline / Q000031:analogs & derivatives* / Q000627:therapeutic use
D000628:Aminophylline; D013806:Theophylline