Cetirizine hydrochloride (marketed as Zyrtec, or Zirtek in the United Kingdom) is a medication used for the treatment of allergy, hayfever, angioedema, and hives. It is a second-generation H1-receptor antagonist antihistamine and works by blocking H1 histamine receptors. It is a major metabolite of hydroxyzine, and has the same basic side effects.

Dermatitis herpetiformis, or DH, is a skin disorder often associated with coeliac disease. It is not caused by herpes virus, but rather its name ...

Cetirizine as related to Dermatitis herpetiformis