Histallay 120mg Film-Coated Tablets. WHAT HISTALLAY IS AND WHAT IT IS USED FOR?. Histallay contain fexofenadine hydrochloride, which is a non-drowsy antihistamine. Histallay is used in adults and adolescents over 12 years of age to relieve the symptoms of allergic rhinitis (for example hayfever) such as sneezing, itchy, runny or blocked nose.
