Hay fever--a distressing environmental allergy. From the Royal Melbourne Hospital Pharmacy Department.
D006634:Histamine H1 Antagonists / Q000627:therapeutic use; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*; D013566:Sympathomimetics / Q000627:therapeutic use
D006634:Histamine H1 Antagonists; D013566:Sympathomimetics