title: Effects of 40 mcg. and 400 mcg. of ipratropium bromide in obstructive lung disease.
mesh_terms: D000368:Aged; D001286:Atropine Derivatives / Q000008:administration & dosage*; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage*; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D008875:Middle Aged; D011208:Powders; D012129:Respiratory Function Tests; D012138:Respiratory Therapy
chemical_list: D001286:Atropine Derivatives; D001993:Bronchodilator Agents; D011208:Powders; D009241:Ipratropium