Cetirizine Hydrochloride
Cetirizine Hydrochloride is a second-generation antihistamine that provides relief from allergy symptoms by blocking histamine receptors in the body. It is commonly used to treat seasonal allergies, perennial allergies, and chronic urticaria (hives).
Cetirizine Hydrochloride is an antihistamine used to relieve allergy symptoms such as sneezing, runny nose, and itchy eyes.
Key facts at a glance
- RxNorm
- 203150
- Generic
- Cetirizine Hydrochloride
- Class
- pin-variant
- Brands
- Wal-Zyr, Wal Zyr 24 Hour Allergy, Quzyttir, Zyrtec-D, Zyrtec, Aller-Tec, Aller-Tec D, Alleroff, Wal Zyr D
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treats seasonal allergic rhinitis (hay fever), perennial allergic rhinitis, and chronic idiopathic urticaria (hives). Commonly relieves symptoms including sneezing, rhinorrhea, itchy nose/throat, watery eyes, and itching from hives.
Works as a selective peripheral H1 receptor antagonist, blocking histamine from binding to receptors and reducing allergic inflammatory responses.
Generally considered non-drowsy though drowsiness may occur in some individuals. Use with caution in patients with renal impairment as dosage adjustment may be needed. Available over-the-counter in many formulations. Consult a healthcare provider before use during pregnancy or breastfeeding.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy