Product Description Cetirizine syrup 5 mg/5 mL What Cetirizine is and what it is used for Cetirizine belongs to a group of drugs called antihistamines.These medicines help to relieve the symptoms of some allergies.This medicine is used to relieve: • symptoms of hayfever and other allergies such as sneezing, runny nose and burning, itchy eyes • symptoms of skin allergies such as rash, itching or urticaria (hives)