title: Use of ipratropium bromide in asthma. Results of a multi-clinic study.
abstract: A multi-center, double-blind, 90-day study compared an ipratropium bromide metered-dose inhaler (40 microgram four times a day) with a metaproterenol metered-dose inhaler (1,500 micrograms four times a day) in 164 patients with asthma; of the 144 patients who completed the study, 71 received ipratropium and 73 received metaproterenol. Our results suggest that both drugs were equally effective bronchodilators. Although the shape of the pulmonary function response curves suggested that ipratropium has different bronchodilator kinetics than metaproterenol (in that it has a slower onset of action and a more prolonged duration), comparison of the areas under the curves for the two drugs showed that there was no statistical difference between ipratropium or metaproterenol. The only significant side effects noted with ipratropium were cough and exacerbation of symptoms; no anticholinergic side effects were noted.
mesh_terms: D000280:Administration, Inhalation; D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D001286:Atropine Derivatives / Q000008:administration & dosage*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage* / Q000009:adverse effects; D008297:Male; D009921:Metaproterenol / Q000008:administration & dosage / Q000009:adverse effects; D008875:Middle Aged; D011897:Random Allocation; D013997:Time Factors
chemical_list: D001286:Atropine Derivatives; D009921:Metaproterenol; D009241:Ipratropium