Nedocromil
Nedocromil is a mast cell stabilizer medication used to prevent and treat allergic reactions. It is primarily prescribed as an ophthalmic solution for allergic conjunctivitis and was previously available as an inhaled formulation for asthma maintenance in some countries. The medication reduces allergic symptoms by preventing inflammatory cells from releasing substances that cause itching, redness, and irritation.
Nedocromil is an anti-allergy medication that prevents mast cells from releasing inflammatory mediators, reducing symptoms of allergic eye conditions and asthma.
Key facts at a glance
- ATC
- R01AC07
- RxNorm
- 31563
- Generic
- Nedocromil
- Class
- atc-r01
- Brands
- Alocril
- Availability
- rx
- Lactation
- unknown
- Routes
- ophthalmic
- Forms
- solution
- 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.
Nedocromil is indicated for the treatment of allergic conjunctivitis causing eye itching, redness, and irritation. It was also used as maintenance therapy for asthma in some regions, though inhaled formulations have been discontinued in many countries.
Nedocromil stabilizes mast cell membranes, preventing degranulation and the subsequent release of inflammatory mediators such as histamine, leukotrienes, and prostaglandins that trigger allergic responses.
For eye drops, typically 1-2 drops are applied to each eye 2-4 times daily. Common side effects may include mild eye stinging or taste changes. Most effective when used before anticipated allergen exposure. May require several weeks of consistent use for optimal results in chronic conditions.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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 20, 2026. · Read our editorial policy