Mometasone Furoate (Nasonex)

Generic for Nasonex or Sinuva for year-round allergy symptoms

Mometasone Furoate is a steroid-based medication used to treat and prevent seasonal nasal allergies and hay fever. It is used to treat symptoms such as runny nose, congestion, and sneezing.

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Strength Quantity Price Stock
50 mcg/actuation1 17g bottle$59.00In Stock
50 mcg/actuation2 17g bottles$99.00In Stock
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Reviewed by Dr Roy Kedem, MD

Information last reviewed 10/01/20


How does Mometasone Furoate work?

Mometasone Furoate belongs to a class of medications called cortisone-like medications or corticosteroids. The medication works by preventing certain cells from releasing inflammatory mediators that cause an allergic reaction.

What is Mometasone Furoate nasal spray used for?

Mometasone Furoate is a nasal spray used to treat symptoms of short-term seasonal allergies, perennial (year-round) allergies, and allergic rhinitis (hay fever). It works to prevent and treat symptoms such as stuffy nose, runny nose, itching, and sneezing. It can also be used to treat nasal polyps.

Is Mometasone Furoate available over the counter?

Mometasone Furoate is only available with a prescription from a doctor. If you need a prescription for Mometasone Furoate nasal spray, simply fill out our consultation form on the Medzino website, and one of our doctors will determine if the medication is suitable for you.

Where to buy Mometasone Furoate nasal spray?

You can purchase Mometasone Furoate nasal spray here with us at Medzino. Fill out our online consultation form, and if one of our doctors feels the medication is appropriate for you, our pharmacy will ship it in plain discreet packaging right to your door.


Active ingredient

The active ingredient in the nasal spray is Mometasone Furoate (as the monohydrate).

Inactive ingredients

The inactive ingredients are: glycerin, microcrystalline cellulose and carboxymethylcellulose sodium, sodium citrate, citric acid, benzalkonium chloride, and polysorbate 80.

Which Mometasone Furoate nasal spray ingredients can cause an allergic reaction?

Mometasone Furoate spray does not specifically cause allergic reactions, unless you have an allergy to any of the spray ingredients. If you notice any of the following symptoms after using the spray, make sure to stop the medication immediately and seek medical attention as you might be having an allergic reaction.

  • Difficulty breathing 
  • Face and lip swelling 
  • Skin rashes
  • Itching 
  • Hives


How to use Mometasone Furoate nasal spray?

Mometasone Furoate nasal spray should be used intranasally. Before using the spray, follow these steps:

  1. Before each use, make sure to shake the bottle.
  2. When using the medication for the first time, you will need to prime the bottle. Pump the bottle ten times or until you notice a fine spray coming out from the nozzle. 
  3. If you have not used the bottle for more then seven days, you will need to prime the bottle again.
  4. Before using the medication, clear your nostrils by gently blowing your nose in a tissue. 
  5. Tilt your head slightly forward while sitting or standing up straight. Insert the medication nozzle into one nostril and spray. 
  6. Breathe in through the nostril and gently blow out through your mouth. 
  7. Continue and spray into the other nostril repeating step 5 and 6. 
  8. After you finish using your nasal spray, make sure to clean the nozzle of the bottle with a wipe and re-cover the medication with the cap.

For the prevention or treatment of seasonal allergies, administer two sprays into each nostril once daily. Each spray delivers 50mcg of Mometasone Furoate.

Side Effects

Mometasone Furoate side effects

Every medication has the potential to cause side effects. Side effects commonly associated with Mometasone Furoate nasal spray may subside over the treatment course as the body adjusts to the medication. They include the following:

Common side effects:

  • Sore throat

Less common side effects:

  • Diarrhea
  • Joint pain 
  • Muscle aches or pains
  • Irritation and burning of the nose
  • Nausea
  • Sneezing
  • Upset stomach or discomfort following meals

Unknown incidence of side effects

  • Bad, unusual, or unpleasant (after) taste or smell
  • Change in taste or smell


Mometasone Furoate medication is contraindicated with the use of Desmopressin, Bemiparin, Lutetium Lu 177 Dotatate, Macimorelin, Nadroparin, and Sargramostim. It is essential to let your doctor know of any medications you are taking before receiving a prescription, to ensure there are no potential interactions.


Taking Mometasone Furoate with Auranofin or Ketoconazole has been linked to an increased risk of specific side effects.

Contraindicated medical conditions

The presence of these medical conditions might preclude the use of Mometasone Furoate. It is important to let the doctor know of any conditions you are suffering from as it can affect the medication and its effects. Make sure to let your doctor know if you:

  • Had recent or past nose surgery 
  • Had a recent or current nasal infection
  • Are currently pregnant or planning to get pregnant 
  • Have ever had tuberculosis (TB)
  • Have ever had glaucoma 
  • Have ever had cataracts 
  • Have an allergy to mometasone furoate or any other ingredients
  • Are currently taking steroid medications or have recently taken steroid medications

Mometasone Furoate and breastfeeding 

There has not been sufficient published medical data to determine the risk of Mometasone Furoate to breastfeeding infants. The prescribing doctor will decide if the potential benefits of the medication outweigh the risks.

Treatment Options

Mometasone Furoate options

Mometasone Furoate comes as a nasal spray and implant. The Mometasone Furoate implant is used primarily in the treatment of nasal polyps. It is placed inside the nasal sinus and left in the sinus to allow for the medication's gradual release. After some time (commonly 90 days), the implant is removed by a doctor. The implant is not used to treat seasonal allergies or hay fever, just polyps in patients over 18 years of age.

Olopatadine HCL

Olopatadine HCL is another nasal spray that is used in the treatment and prevention of seasonal allergy symptoms. It belongs to a class of medications called antihistamines and works by preventing histamines' release when the body comes in contact with an allergen.


Disclaimer: This is not medical advice. You and your physician will determine if and how you should take any medication prescribed to you following a medical consultation.

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