NasalCrom Side Effects
Generic name: cromolyn nasal
Medically reviewed by Drugs.com. Last updated on Feb 8, 2025.
Note: This document provides detailed information about NasalCrom Side Effects associated with cromolyn nasal. Some dosage forms listed on this page may not apply specifically to the brand name NasalCrom.
Applies to cromolyn nasal: nasal spray.
Precautions
If your symptoms do not improve or if your condition becomes worse, check with your doctor.
Common side effects of NasalCrom
Some side effects of cromolyn nasal may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common side effects
- burning, stinging, or irritation inside of nose
- flushing
- increase in sneezing
Serious side effects of NasalCrom
Along with its needed effects, cromolyn nasal (the active ingredient contained in NasalCrom) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur while taking cromolyn nasal:
Rare side effects
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For healthcare professionals
Applies to cromolyn nasal: nasal spray.
General adverse events
The most commonly reported adverse effects have included headache, bad taste in mouth, and a brief stinging or sneezing after use.[Ref]
Respiratory
- Common (1% to 10%): Sneezing, nasal stinging, burning, irritation
- Rare (less than 1%): Epistaxis, postnasal drip[Ref]
Hypersensitivity
- Frequency not reported: Anaphylaxis[Ref]
Hypersensitivity has been reported to develop after weeks to years of use.[Ref]
Nervous system
- Common (1% to 10%): Headache[Ref]
Gastrointestinal
- Common (1% to 10%): Bad taste[Ref]
Dermatologic
- Rare (less than 0.1%): Rash[Ref]
References
1. MHRA. Medicines and Health Regulatory Agency (2013) MHRA Drug Safety Update. http://www.mhra.gov.uk/Safetyinformation/DrugSafetyUpdate
2. (2022) "Product Information. Cromolyn Sodium Nasal (cromolyn nasal)." Bausch and Lomb Americas, Inc.
More about NasalCrom (cromolyn nasal)
- Compare alternatives
- Reviews (7)
- Dosage information
- During pregnancy
- Drug class: nasal antihistamines and decongestants
- Breastfeeding
- En español
Patient resources
Related treatment guides
Further information
NasalCrom side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.