Comparison of ketotifen, disodium cromoglycate and placebo in the treatment of adult patients with extrinsic asthma.
D000328:Adult; D001249:Asthma / Q000145:classification / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D006801:Humans; D007665:Ketotifen; D010366:Peak Expiratory Flow Rate; D010880:Piperidines / Q000627:therapeutic use*; D010919:Placebos; D013876:Thiophenes / Q000627:therapeutic use*
D010880:Piperidines; D010919:Placebos; D013876:Thiophenes; D004205:Cromolyn Sodium; D007665:Ketotifen