title: Controlled trial of terfenadine and chlorpheniramine maleate in perennial rhinitis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001559:Benzhydryl Compounds / Q000627:therapeutic use*; D002744:Chlorpheniramine / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D008875:Middle Aged; D012221:Rhinitis, Allergic, Perennial / Q000188:drug therapy*; D016593:Terfenadine
chemical_list: D001559:Benzhydryl Compounds; D006634:Histamine H1 Antagonists; D002744:Chlorpheniramine; D016593:Terfenadine