title: Protective and bronchospasmolytic effect of ipratropium bromide in bronchial antigen challenge tests compared to other antiasthmatic drugs.
mesh_terms: D000336:Aerosols; D000485:Allergens; D001286:Atropine Derivatives / Q000627:therapeutic use*; D001980:Bronchi / Q000276:immunology*; D001986:Bronchial Spasm / Q000188:drug therapy*; D001993:Bronchodilator Agents; D004205:Cromolyn Sodium / Q000627:therapeutic use; D004341:Drug Evaluation; D006801:Humans; D009241:Ipratropium / Q000008:administration & dosage / Q000627:therapeutic use*; D012130:Respiratory Hypersensitivity / Q000175:diagnosis*
chemical_list: D000336:Aerosols; D000485:Allergens; D001286:Atropine Derivatives; D001993:Bronchodilator Agents; D009241:Ipratropium; D004205:Cromolyn Sodium