Levocetirizine
Quzyttir is an injectable antihistamine used to treat acute allergic reactions, particularly acute urticaria (hives). It provides rapid relief for patients who cannot take oral medications. The active ingredient, cetirizine, belongs to the second-generation antihistamine class.
Quzyttir is an injectable antihistamine used to treat acute allergic reactions and hives when oral medication is not suitable.
Key facts at a glance
- RxNorm
- 2261747
- Generic
- Quzyttir
- Class
- brand-name
- Brands
- —
- 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.
Treatment of acute urticaria (hives) and acute allergic reactions in adults and children. Often used when patients cannot take oral medications or need faster onset of action than oral antihistamines can provide.
Quzyttir contains cetirizine, an H1 histamine receptor antagonist that blocks the action of histamine, a substance in the body that causes allergic symptoms such as itching, swelling, and skin reactions.
Administered as an intravenous or subcutaneous injection by healthcare professionals. May cause drowsiness in some patients. Patients should inform their healthcare provider of all medications and medical conditions before use. Not for use in patients with known hypersensitivity to cetirizine or hydroxyzine.
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 July 26, 2026. · Read our editorial policy