Nasonex Nasal Spray (Mometasone Furoate) Medication


Nasonex Nasal Spray (Mometasone Furoate)

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Table of contents:

Drug Description


Nasonex Nasal Spray is indicated to prevent and treat seasonal and year-round allergy symptoms, such as congested or runny nose, itching, and sneezing.  

Nasonex Nasal Spray is also indicated for treating nasal polyps in adults, a condition characterized by inflammation and swelling of the nasal lining. 

As a corticosteroid medication, Nasonex Nasal Spray functions by inhibiting the release of certain natural substances responsible for triggering allergy symptoms. 

Uses and Dosage 

Before using Nasonex Nasal Spray and with every prescription refill, carefully review its medication guide and patient information leaflet. Consult your doctor or pharmacist for any queries or uncertainties. 

Nasonex Nasal Spray is strictly intended for nasal use. Refrain from ingesting it and exercise caution to avoid spraying it into your mouth or eyes. 

The dosage of Nasonex Nasal Spray may vary per individual based on age, medical condition, and response to the treatment.  

Typically, this medication is administered intranasally once or twice a day as prescribed by the doctor. 

Priming the pump is necessary before using Nasonex Nasal Spray for the first time, after a week or longer without use, or after cleaning the nozzle. 

To prime: Hold the spray with the applicator positioned between your index and middle fingers while your thumb supports the bottom of the bottle. Make sure the applicator is facing away from your face. 

  • For first-time use, press and release the pump ten times or until a fine mist is visibly emitted. 
  • If the nasal spray has been used before but not within the past week, or if the nozzle has recently been cleaned, press and release the pump twice until a fine mist is emitted. 

To properly use this nasal spray, follow these steps: 

  1. Ensure the bottle is thoroughly shaken before every use. 
  2. Clear your nostrils by blowing your nose gently. 
  3. Close one nostril by pressing it with your finger. 
  4. Tilt your head slightly forward and carefully insert the nasal applicator tip into the other nostril, ensuring the bottle remains upright. 
  5. Hold the pump with the applicator positioned between your index and middle fingers while your thumb supports the bottom. 
  6. Begin to inhale through your nose. 
  7. While inhaling, firmly press down on the applicator with your index and middle fingers to release a spray. 
  8. Breathe gently through your nostril and exhale through your mouth.  
  9. If your doctor instructed you to use two sprays in the same nostril, repeat steps 1 to 8. 
  10. Repeat steps 1 to 9 for the other nostril. 
  11. Refrain from blowing your nose within 15 minutes of using this medication. 
  12. Wipe the applicator with a clean tissue after use and replace the plastic cap. 

For optimal results, use Nasonex Nasal Spray consistently around the same times daily unless instructed otherwise by your physician. 

To effectively prevent seasonal allergy symptoms, it may be necessary to use Nasonex Nasal Spray 2 to 4 weeks before the onset of pollen season. Consult your doctor or pharmacist regarding the potential need for additional medications, such as nose drops/sprays or oral allergy drugs, to be used in conjunction with Nasonex Nasal Spray until its full effect is achieved. 

Use Nasonex Nasal Spray exactly as directed. Avoid raising the dosage or using it more frequently or longer than the prescribed duration, as it will not hasten recovery and may heighten adverse effects. 

Nasonex Nasal Spray has a designated number of sprays. If the marked amount is exceeded, the remaining sprays may not have the accurate medication dosage. Monitor your usage and discard the bottle after reaching the designated number of sprays, regardless of the remaining liquid. 

Side Effects 

Listed below are the potential adverse effects of Nasonex Nasal Spray. Inform your doctor promptly if any of these symptoms last or worsen. 

Common Side Effects 

  • Dryness or irritation in the nose or throat 
  • Presence of blood in mucus or phlegm 
  • Nosebleeds 

Serious Side Effects 

  • Pain or sores in the nose 
  • White patches in the nose or mouth 
  • Painful or difficulty swallowing 

Tell your doctor right away if you experience any of the severe side effects above. 

In rare cases, nasal corticosteroids may be absorbed into the bloodstream, potentially causing excessive corticosteroid effects. Children and individuals using Nasonex Nasal Spray for extended periods and at high doses are at higher risk of experiencing these side effects. Promptly inform your doctor if any of the following side effects occur:  

  • Unusual or extreme fatigue 
  • Weight loss 
  • Headache 
  • Swelling in the ankles or feet 
  • Increased thirst or urination 
  • Vision problems 

Allergic Reactions 

Although rare, a severe allergic reaction to Nasonex Nasal Spray may occur. Seek immediate medical assistance if any of the following symptoms arise: 

  • Rash 
  • Face/tongue/throat swelling or itching 
  • Severe dizziness 
  • Trouble breathing  

This list does not contain all the potential side effects of Nasonex Nasal Spray. If any unlisted effects are experienced, inform your doctor right away. 


Before starting treatment with Nasonex Nasal Spray, inform your doctor and pharmacist if you have any known hypersensitivities, especially to mometasone, other medications, or any ingredients present in this nasal spray. 

To ensure Nasonex Nasal Spray is safe for you, disclose to your physician your medical background, especially if you have a history of: 

  • Eye problems, such as glaucoma or cataracts 
  • Infections, including tuberculosis or herpes eye infection 
  • Recent nose problems, such as injury, ulcers, or surgery 

Inform your doctor and pharmacist about all medications, vitamins, supplements, and herbal products you are currently or planning to use to avoid potential interactions with Nasonex Nasal Spray. 

Avoid contact with individuals carrying contagious infections such as chickenpox, COVID-19, measles, or flu. Consult your doctor if you have come into contact with an infection or require further information. 

Prolonged use of corticosteroids such as Nasonex Nasal Spray may hinder the body’s response to physical stress. Inform your doctor or dentist of your current or recent use of this medication before undergoing surgery, emergency treatment, or in the event of a serious illness or injury. 

During pregnancy, Nasonex Nasal Spray should be used only when clearly needed. Discuss the risks and benefits with your doctor prior to use. 

The transfer of mometasone into breast milk is uncertain. Seek guidance from your doctor before nursing an infant when using this medication. 

Additional information

Generic name:

Mometasone Furoate


Nasal Spray, Nasal spray



Quantities Available:

140doses, 280doses, 420doses

Quality Prescription Drugs has provided information from third parties intended to increase awareness and does not contain all the information about Nasonex Nasal Spray (Mometasone Furoate). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Nasonex Nasal Spray (Mometasone Furoate).