Desloratadine
Clarinex (desloratadine) is a prescription antihistamine used to treat common allergy symptoms including sneezing, runny nose, itchy/watery eyes, and skin itching associated with seasonal allergies. It is also prescribed for chronic idiopathic urticaria (hives) to help reduce itching and rash.
A once-daily prescription antihistamine providing 24-hour relief from seasonal allergy symptoms and chronic hives.
Key facts at a glance
- RxNorm
- 323342
- Generic
- Clarinex
- 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.
Treats symptoms of seasonal and perennial allergic rhinitis such as sneezing, runny nose, nasal itching, and itchy/watery eyes. Also used for chronic idiopathic urticaria to relieve itching and reduce the frequency of hives.
Desloratadine is a second-generation H1 antihistamine that blocks histamine receptors in the body, preventing histamine from triggering allergic responses and thereby reducing common allergy symptoms.
Typically taken once daily with or without food. Generally causes less drowsiness than older antihistamines. Available by prescription only; patients should consult their healthcare provider for appropriate diagnosis and treatment recommendations.
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