Histamine antagonists and asthma.
D000403:Airway Resistance / Q000187:drug effects; D000818:Animals; D000941:Antigens / Q000276:immunology; D001249:Asthma / Q000188:drug therapy*; D001980:Bronchi / Q000187:drug effects; D006633:Histamine Antagonists / Q000627:therapeutic use*; D006801:Humans; D007665:Ketotifen / Q000494:pharmacology; D008168:Lung / Q000187:drug effects; D008407:Mast Cells / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D011968:Receptors, Histamine / Q000187:drug effects
D000941:Antigens; D006633:Histamine Antagonists; D011968:Receptors, Histamine; D007665:Ketotifen