For patients with symptomatic chronic spontaneous urticaria after treatment with second-generation H 1-antihistamines, ...

Xyzal (levocetirizine) and Zyrtec (cetirizine) are over-the-counter (OTC) allergy medications. Learn about their key differences, their side effects, and which one may be right for you.

Approximately one in four Brits— about 16million people — suffer from hay fever and many turn to antihistamines tablets and sprays for relief. Dr Komaroff said the theoretical risk posed by ...

Patients with chronic spontaneous urticaria that was not controlled with H1 antihistamines experienced improvements in itch ...