title: Bronchodilator effects of oral metaproterenol sulfate in preschool children with asthma.
mesh_terms: D000284:Administration, Oral; D000403:Airway Resistance / Q000187:drug effects; D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D002648:Child; D002675:Child, Preschool; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D004341:Drug Evaluation; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D009921:Metaproterenol / Q000008:administration & dosage* / Q000009:adverse effects; D008722:Methods; D009468:Neuromuscular Diseases / Q000139:chemically induced; D011897:Random Allocation
chemical_list: D009921:Metaproterenol