Disodium cromoglycate.
D000328:Adult; D000402:Airway Obstruction / Q000517:prevention & control; D000937:Antigen-Antibody Reactions; D001249:Asthma / Q000276:immunology / Q000517:prevention & control; D002648:Child; D004205:Cromolyn Sodium / Q000627:therapeutic use; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology; D007545:Isoproterenol / Q000627:therapeutic use; D008407:Mast Cells / Q000276:immunology / Q000378:metabolism; D010919:Placebos; D006255:Rhinitis, Allergic, Seasonal / Q000517:prevention & control
D010919:Placebos; D007545:Isoproterenol; D004205:Cromolyn Sodium