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Allergy Treatment

Cetirizine is an antihistamine often used to treat allergy symptoms. In this guide, we explore how it works, its side-effects and correct dosage.
Find out what ZYRTEC® is used for.

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

Avoid Blowing Your Nose & Find Congestion Relief With ZYRTEC-D

What does a decongestant do? Learn all about decongestants for allergies, including how they differ from antihistamines.

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See how Zyrtec® compares to others.

Get the ZYRTEC® ALLERGYCAST® app

Get the ZYRTEC® AllergyCast® app for your daily pollen forecast.

Standard data rates apply.

Where to Buy

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