title: A re-evaluation of ephedrine/theophylline combinations in the treatment of asthma.
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D004357:Drug Synergism; D004359:Drug Therapy, Combination; D004809:Ephedrine / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D013806:Theophylline / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D013806:Theophylline; D004809:Ephedrine