Flunisolide
Flunisolide is a synthetic corticosteroid nasal spray that reduces inflammation in the nasal passages. It is primarily used to treat symptoms of allergic rhinitis such as nasal congestion, sneezing, and runny nose, as well as nasal polyps.
A corticosteroid nasal spray that treats allergic rhinitis and nasal polyps by reducing inflammation.
Key facts at a glance
- ATC
- R01AD04
- RxNorm
- 25120
- Generic
- Flunisolide
- Class
- atc-r01
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- nasal
- Forms
- spray
- 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 seasonal and perennial allergic rhinitis symptoms including nasal congestion, sneezing, itching, and runny nose. Also used for nasal polyps to reduce inflammation and improve nasal airflow.
As a glucocorticoid, flunisolide works by binding to corticosteroid receptors in nasal tissues, inhibiting the release of inflammatory mediators and suppressing the immune response that causes nasal inflammation and allergy symptoms.
For nasal use only. May take several days of regular use before full therapeutic effect is achieved. Common side effects may include nasal irritation, sneezing, or minor nosebleeds. Consult healthcare provider before use if pregnant 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