title: Protective effect of fenoterol spray, ipratropium bromide plus fenoterol spray, and oral clenbuterol, on exercise-induced asthma in children. Double blind controlled and randomized clinical trial.
mesh_terms: D000281:Administration, Intranasal; D000284:Administration, Oral; D000293:Adolescent; D000336:Aerosols; D001249:Asthma / Q000188:drug therapy*; D001250:Asthma, Exercise-Induced / Q000188:drug therapy*; D001286:Atropine Derivatives / Q000627:therapeutic use*; D002648:Child; D002976:Clenbuterol / Q000008:administration & dosage / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004338:Drug Combinations; D004983:Ethanolamines / Q000627:therapeutic use*; D005280:Fenoterol / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D000336:Aerosols; D001286:Atropine Derivatives; D004338:Drug Combinations; D004983:Ethanolamines; D005280:Fenoterol; D009241:Ipratropium; D002976:Clenbuterol