title: A comparative trial of ipratropium bromide (Atrovent), controlled release theophylline (Phyllocontin), and a combination of these in patients with reversible airflow obstruction.
mesh_terms: D000328:Adult; D000368:Aged; D001286:Atropine Derivatives / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D009241:Ipratropium / Q000627:therapeutic use*; D008173:Lung Diseases, Obstructive / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010366:Peak Expiratory Flow Rate; D013806:Theophylline / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D001286:Atropine Derivatives; D003692:Delayed-Action Preparations; D013806:Theophylline; D009241:Ipratropium