Fexofin Tablets 120mg – Fexofenadine HCl for Allergy ReliefFexofin Tablets 120mg Fexofenadine HCl for Allergy Relief Fexofin Tablets 120mg contain Fexofenadine HCl, a non sedating antihistamine used to relieve symptoms of seasonal allergic rhinitis and chronic idiopathic urticaria (hives). Fexofenadine works by blocking the effects of histamine, a substance in the body that causes allergic reactions. By preventing histamine from binding to its receptors, Fexofenadine reduces common allergy symptoms such as