Ketotifen in hay fever and allergic rhinitis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002744:Chlorpheniramine / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007665:Ketotifen / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D012221:Rhinitis, Allergic, Perennial / Q000188:drug therapy*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
D002744:Chlorpheniramine; D007665:Ketotifen