title: A long-acting antihistamine.
mesh_terms: D004115:Dimethindene / Q000627:therapeutic use*; D006634:Histamine H1 Antagonists / Q000627:therapeutic use*; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D006634:Histamine H1 Antagonists; D004115:Dimethindene