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Crolom Side Effects

Generic Name: cromolyn ophthalmic

Note: This page contains information about the side effects of cromolyn ophthalmic. Some of the dosage forms included on this document may not apply to the brand name Crolom.

For the Consumer

Applies to cromolyn ophthalmic: ophthalmic solution

In addition to its needed effects, some unwanted effects may be caused by cromolyn ophthalmic (the active ingredient contained in Crolom). In the event that any of these side effects do occur, they may require medical attention.

Severity: Moderate

If any of the following side effects occur while taking cromolyn ophthalmic, check with your doctor or nurse as soon as possible:

  • Rash or redness around the eyes
  • swelling of the membrane covering the white part of the eye, redness of the white part of the eye, styes, or other eye irritation not present before therapy

Severity: Minor

Some of the side effects that can occur with cromolyn ophthalmic may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common:
  • Burning or stinging of eye (mild and temporary)
Less common or rare:
  • Dryness or puffiness around the eye
  • watering or itching of eye (increased)

For Healthcare Professionals

Applies to cromolyn ophthalmic: ophthalmic solution


Ocular side effects have most frequently included burning or stinging upon instillation. Less frequently occurring side effects have included conjunctival injection, watery eyes, itchy eyes, dry eyes, ocular puffiness, irritation, and styes.[Ref]


Hypersensitivity reactions have been reported rarely. Immediate-type reactions have included dyspnea, edema, and rash.[Ref]


1. "Product Information. Opticrom (cromolyn sodium ophthalmic)." Allergan Inc, Irvine, CA.

Not all side effects for Crolom may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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