Skip to content

Allergies Health Center

Select An Article

Mast Cell Inhibitors for Allergy Symptoms

    Font Size

    Cromolyn sodium (Nasalcrom, Crolom), a mast cell inhibitor, is used to prevent allergic symptoms like runny nose or itchy eyes. Cromolyn sodium must be started 1-2 weeks before pollen season and continued daily to prevent seasonal allergy symptoms. The response is not as strong as that of corticosteroid nasal sprays.

    • How mast cell inhibitors work: These drugs prevent the release of histamine and other chemicals that cause allergic symptoms from mast cells when an individual comes into contact with an allergen like pollen.
    • Who should not use these medications: Individuals who are allergic to any components of the nasal spray or eye drops should not take mast cell inhibitors.
    • Use: Frequent dosing is necessary, since the effect only lasts up to 8 hours. Mast cell inhibitors are available as nasal sprays to prevent runny nose or eye drops for itchy eyes.
    • Drug or food interactions: Since these drugs have little or no effect beyond the area applied, they are unlikely to interact with other drugs.
    • Side effects:Contact lenses should not be worn if using eye drops. Eye drops may cause stinging, burning, redness, and, possibly, severe swelling of eyes. Nasal congestion, sneezing, itching, nosebleeds, and burning have been reported with use of cromolyn sodium nasal sprays.

    Recommended Related to Allergies

    5 Ways to Beat Spring Allergies

    At last, the first warm days of spring! Time to open the windows, pack away the winter coats, get out in the garden -- and head to the pharmacy to stock up on allergymedications. If you greet the arrival of spring each year with a stuffy nose and watery eyes instead of a happy heart, it's time to take a new look at your seasonal allergies. You may have been struggling with spring allergies for years, but that doesn't mean you can't learn a few new tricks about coping with them. With the help of...

    Read the 5 Ways to Beat Spring Allergies article > >

    WebMD Medical Reference from eMedicineHealth

    Reviewed by Luqman Seidu, MD on May 04, 2014
    Next Article:

    Today on WebMD

    man blowing nose
    Make these tweaks to your diet, home, and lifestyle.
    Allergy capsule
    Breathe easier with these products.
     
    cat on couch
    Live in harmony with your cat or dog.
    Woman sneezing with tissue in meadow
    Which ones affect you?
     

    blowing nose
    Article
    woman with sore throat
    Article
     
    lone star tick
    Slideshow
    Woman blowing nose
    Slideshow
     

    Send yourself a link to download the app.

    Loading ...

    Please wait...

    This feature is temporarily unavailable. Please try again later.

    Thanks!

    Now check your email account on your mobile phone to download your new app.

    cat lying on shelf
    Article
    Allergy prick test
    VIDEO
     
    Man sneezing into tissue
    Assessment
    Woman holding feather duster up to face, twitching
    Quiz