Allergies Home > Cromolyn

Cromolyn is a medication that is used for treating asthma and allergies. It is available by prescription and comes in various forms, including inhalers, nasal spray, oral solution, and eyedrops. The drug works by stabilizing mast cells in the body, which prevents the release of certain chemicals that cause allergic reactions.

What Is Cromolyn?

Cromolyn is a prescription medication used to treat symptoms of asthma and allergies. The medicine comes in several different forms, including:
 
  • Cromolyn inhalation (Intal®), for the treatment of asthma
  • Cromolyn nasal spray (NasalCrom®), an over-the-counter medication used as an allergy treatment
  • Cromolyn oral solution (Gastrocrom®), for treating mastocytosis (a condition most commonly affecting the skin)
  • Cromolyn eyedrops (Crolom®, Opticrom®), for treating eye allergies.
     

How Does the Medication Work?

Cromolyn belongs to a group of drugs called mast cell stabilizers. In response to allergens (substances that cause allergic reactions) and certain conditions, mast cells in the body release chemicals that cause allergy symptoms. By stabilizing the mast cells, cromolyn prevents the mast cells from releasing the chemicals, which prevents these reactions.
 

Dosing Information

The dose of cromolyn your healthcare provider recommends will vary, depending on a number of factors, including:
 
  • Your age
  • The medical condition being treated
  • The particular cromolyn product
  • The severity of your condition
  • Other medications you may be taking.
     
As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
 
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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