title: [H1-receptor blockers: review and preview].
mesh_terms: D016589:Astemizole; D001559:Benzhydryl Compounds; D001562:Benzimidazoles; D006634:Histamine H1 Antagonists / Q000627:therapeutic use; D006801:Humans; D016593:Terfenadine
chemical_list: D001559:Benzhydryl Compounds; D001562:Benzimidazoles; D006634:Histamine H1 Antagonists; D016593:Terfenadine; D016589:Astemizole