title: Comparison of the efficacy of four antihistamines in chronic urticaria.
authors.forename: U
authors.initials: U
authors.lastname: Youngchaiyud
mesh_terms: D000293:Adolescent; D000328:Adult; D002744:Chlorpheniramine / Q000627:therapeutic use; D002908:Chronic Disease; D002927:Cimetidine / Q000627:therapeutic use; D002974:Clemastine / Q000627:therapeutic use; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D006919:Hydroxyzine / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D011537:Pruritus / Q000188:drug therapy; D011897:Random Allocation; D014581:Urticaria / Q000188:drug therapy*
chemical_list: D004338:Drug Combinations; D006634:Histamine H1 Antagonists; D006919:Hydroxyzine; D002744:Chlorpheniramine; D002927:Cimetidine; D002974:Clemastine