healtha2z fexofenadine hydrochloride 180mg, antihistamine for allergy relief ,non-drowsy,24-hour, 120 count coated caplets,compare to allegra active ingredient healtha2z healtha2z fexofenadine hcl 180mg, provides strong, 24 hour, relief from indoor and outdoor allergies. aids in the relief of symptoms associated with hay fever or other upper respiratory allergies, including runny nose, itchy, watery eyes, sneezing and itching of the nose and throat.