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Discover & Shop Adult ZYRTEC® Allergy Relief Products

Explore the lineup from the #1 Doctor recommended allergy brand*. ZYRTEC® allergy medicine provides a full 24 hours of allergy relief for you and your family. Whether you’re seeking relief from indoor or outdoor allergy symptoms (rhinitis), our line of allergy medication is designed to provide effective treatment. Say goodbye to sneezes, runny nose, itchy and watery eyes with our trusted over the counter antihistamine medications with cetirizine or behind the counter antihistamine plus decongestant combination for allergy plus congestion relief with cetirizine and pseudoephedrine.

*Among OTC oral antihistamines, ZYRTEC® is the #1 physician recommended allergy brand & also the #1 pediatrician recommended allergy brand

ZYRTEC® for Adult\'s Cetirizine HCl Products

Discover More About ZYRTEC®

Cetirizine hydrochloride chemical structure
ALLERGY GUIDE

Learn About Zyrtec® Active and Inactive Ingredients

Having allergies can be frustrating at times, whether they’re making your eyes itch, your nose run, or a combination of the two. So, it’s a relief to know that antihistamines can help relieve your symptoms.

What Is ZYRTEC® Used For?
ALLERGY GUIDE

What is Zyrtec® and What is it Used For?

Learn about what ZYRTEC® can do to help relieve common allergy symptoms.

Common Allergy Symptoms
ALLERGY GUIDE

Common Allergy Symptoms and How to Get Relief

Learn more about allergy symptoms and how to identify common signs of a reaction. Find out how you can seek relief from allergies with ZYRTEC®.