Telfast 180mg 100 Tablets Exclusive SizeFast, non drowsy 24 hr relief of the symptoms of hayfever allergies and itchy skin rash or hives. Telfast contains an active ingredient called fexofenadine hydrochloride. It is one of a group of medicines called antihistamines. Antihistamines help reduce allergic symptoms by preventing the effects of a substance called histamine, which your body produces when exposed to certain substances. Telfast is a non sedating antihistamine which means it has