title: Combination low-dose metaproterenol-theophylline therapy in asthma.
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004338:Drug Combinations; D004359:Drug Therapy, Combination; D005260:Female; D006261:Headache / Q000139:chemically induced; D006801:Humans; D008297:Male; D009921:Metaproterenol / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D009135:Muscular Diseases / Q000139:chemically induced; D009325:Nausea / Q000139:chemically induced; D012129:Respiratory Function Tests; D007319:Sleep Initiation and Maintenance Disorders / Q000139:chemically induced; D013610:Tachycardia / Q000139:chemically induced; D013806:Theophylline / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D004338:Drug Combinations; D009921:Metaproterenol; D013806:Theophylline