Don t let allergies slow you down! Give yourself the gift of relief with Dr. Reddy s Allergy Relief Cetirizine HCL tablets designed to combat the most common symptoms of indoor and outdoor allergies. It s active ingredient Cetirizine HCL is known to relieve runny nose itchy/watery eyes sneezing and itching of the nose or throat. Compare to the active ingredient in Zyrtec.