Asmanex vs. cromolyn

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Prevents breathing problems. Asmanex (Mometasone) is good at controlling and preventing asthma symptoms when you take it every day.Relieves nasal allergy symptoms. Intal (Cromolyn) is a good option to relieve nasal allergy symptoms when antihistamines aren't working. Good choice for pregnant women.
How it works
Asmanex (Mometasone) is a corticosteroid. It lowers inflammation in your lungs, which controls asthma and prevents asthma attacks.Intal (Cromolyn) is a mast-cell stabilizer nasal spray that prevents and treats seasonal allergies.
Type of medication
Prescription only
Mast cell stabilizerPrescription or OTC
Available as
  • Inhaler
  • Nasal spray
Used for (click to learn more)
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Reviews & ratings
Button Group. All currently active
Button Group. All currently active
Reviews for Asmanex (Mometasone)
of people say Asmanex (Mometasone) is worth it
say it works well
say it's a big hassle
Side effects
  • Allergic rhinitis 15%
  • Candidiasis, oral 13%
  • Fatigue 11%
  • Musculoskeletal pain 8%
  • Sore throat 6%
  • Joint pain 6%
  • Menstrual cramps 5%
  • Abdominal pain 4%
  • Sinus inflammation 3%
  • Fever 2%
More Asmanex side effects »

We haven’t found good data for cromolyn side effects.

FDA side effect reports for cromolyn »
Risk factors for serious side effects
  • Lowering dose or stopping Asmanex (Mometasone) too quickly especially after long-term treatment
  • Stress such as trauma, surgery or infection
  • Severe milk protein allergy
  • Bacterial or viral infection not being treated
  • Long-term treatment with Asmanex (Mometasone)
  • Not vaccinated against chickenpox or measles
    • Dose of Asmanex (Mometasone)
    • Duration of treatment
    • Not rinsing mouth after use
    • Using higher dose of Asmanex (Mometasone)
    • History of high internal eye pressure
    • History of cataracts
    • History of glaucoma
    Detailed Asmanex (Mometasone) risks & warnings »
    Coming soon.
    Pregnancy category
    CFDA pregnancy category (Weigh risks vs. benefits)

    Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

    See the FDA package insert
    BFDA pregnancy category (Probably safe)

    Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

    See the FDA package insert
    No specific alcohol-related info.No specific alcohol-related info.
    No specific food-related info.No specific food-related info.
    Kidneys and liver
    No specific kidneys and liver-related info.No specific kidneys and liver-related info.
    No specific sex-related info.No specific sex-related info.
    No specific sleep-related info.No specific sleep-related info.
    No specific weight-related info.No specific weight-related info.
    Upsides and benefits
    • Relieves symptoms and improves control of asthma.
    • People report fewer asthma symptoms and better lung function when they take it every day.
    • Inhaling this medicine (rather than taking an oral steroid) gets more into the lungs and less into rest of your body, which lowers the risk of side effects. Inhaled corticosteroids can be used safely for years compared to oral corticosteroids like prednisone.
    • Some people who take this medicine are able to stop other asthma medications or use their fast-acting (rescue) inhalers less often.
    • Treats nasal allergy symptoms.
    • Most people don't have many side effects since it works in the nose and doesn't affect the rest of your body.
    • It's a good option for pregnant women. Can also be used for kids 2 years and older.
    • Doesn't make you drowsy or dizzy.
    • No prescription is needed.
    Downsides and risks
    • You can't lower the dose or stop taking it too suddenly.
    • Steroids can slow height growth in kids.
    • Because steroids suppress your immune system, you can catch bacterial and viral infections easier, and they can take longer to go away.
    • Can cause new or worsening eye pressure, glaucoma, and cataracts.
    • Needs to be used regularly for at least a week to see any good effects.
    • Can have an unpleasant smell or taste.
    • Can cause headaches, or burning and stinging in your nose.
    Tips from our pharmacists for people taking the medication
    • Use it every day to control your asthma symptoms.
    • Starts working the same day, but it can take 1 to 2 weeks to feel the full effects.
    • Rinse your mouth out with water after each use.
    • Replace the cap on the inhaler after each use to protect it from moisture.
    • Hold your breath for 10 seconds after inhaling the medication.
    • Don't breathe out into the inhaler mouthpiece.
    • Tell your doctor if the medication stops working or if your symptoms get worse.
    • Contains lactose, so don't take if you have a milk protein allergy.
    • Works best when used one week before exposure to allergens. It takes about 1 to 2 weeks until you feel the full effects.
    • Check with your doctor or pharmacist to make sure you know how to use this nose spray. Don't use more than recommended.
    • Shake the spray gently and clear your nose before each use.
    • Before using it for the first time, prime the spray pump until you see a fine mist.
    • Breathe in slowly as you're spraying. Wait a few minutes before blowing your nose if needed.
    Learn more
    More about AsmanexSide effectsReviews & ratingsAlternativesFDA package insert
    More about cromolynSide effectsAlternativesFDA package insert