Prescription onlyLower-cost generic available



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Relieves allergy symptoms.

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Prescription onlyLower-cost generic available

Our pharmacists’ bottom line

Nasonex (Mometasone) is a good first-choice treatment for stuffy and runny noses caused by allergies.

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  • First-choice medication for treating runny and stuffy noses caused by allergies. It works by reducing inflammation in the nose.
  • Because it's used directly where the inflammation is happening, it has fewer side effects than oral steroids do and has a lower chance of causing withdrawal symptoms once the medication is stopped.
  • Can be used as needed to help control symptoms in people age 13 years or older.
  • Available as a generic, which is cheaper.
  • Needs to be primed 10 times before it can be used, or re-primed if not used for more than 2 weeks.
  • Doesn't have a counter on it, so it can be hard to remember how many sprays are left (each bottle has 120 sprays).
  • Since the medicine in Nasonex (Mometasone) is a steroid, it can slow down your healing process if you've hurt your nose or had nose surgery.

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Side effects for Nasonex (Mometasone)

From clinical trials of Nasonex / Nasal congestion associated with year-round allergies (200 mcg daily) ( 1008)

  • Sinus headacheSinus headache1% for Nasonex vs.0% for placebo
  • NosebleedNosebleed1% for Nasonex vs.0% for placebo

What to expect when you start Nasonex (Mometasone)

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Tips from our pharmacists
  • Use Nasonex (Mometasone) once a day, following age-specific recommendations on how many sprays to use. Don't take more than prescribed.
  • Blow your nose before using.
  • Can cause thrush (a fungal infection) inside your nose and throat. Can also cause nosebleeds, a sore throat, and headaches.
  • Needs to be used regularly during allergy season for it to work. It can take 1 to 2 weeks for the medicine to start working fully.
  • Check with your doctor or pharmacist on how to use the nasal spray the right way.
  • Shake well before using it. Before the first use, prime the bottle by spraying it until you see a fine mist.

Risks and Warnings for Nasonex (Mometasone)

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    • Higher risk if:
    • Long-term use

    Long-term use of Nasonex (Mometasone) can increase your chances of getting thrush in the nose and throat. Your doctor will check your nose and throat if you have to be on this medication for a long time. Also, tell your doctor if you notice pain in the nose and throat with redness and white patches.

Means that some groups have a high risk of experiencing this side effect

Tips from pharmacists and people taking Nasonex (Mometasone)

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The FDA category for this medication is C. It is advised that you: Weigh risks vs. benefits