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Nasonex (Generic Mometasone Nasal Spray)

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Why is this medication prescribed?

Nasonex is a brand name for the medication mometasone furoate nasal spray. It is prescribed for the treatment of allergic rhinitis, also known as hay fever. Allergic rhinitis is characterized by symptoms such as sneezing, itching, runny nose, and nasal congestion caused by allergies to substances like pollen, dust mites, or pet dander.

Nasonex is a corticosteroid that works by reducing inflammation in the nasal passages, thereby alleviating the symptoms of allergic rhinitis. It can help relieve nasal congestion, sneezing, itching, and runny nose associated with seasonal or perennial allergies.

How should this medicine be used?

The exact dosage and instructions for using Nasonex can vary depending on the individual’s age, medical condition, and the severity of their symptoms. It is important to follow the instructions provided by the prescribing doctor or the information provided with the medication. However, the general guidelines for using Nasonex are as follows:

  • Shake the nasal spray gently before each use.
  • Clear your nasal passages by blowing your nose gently.
  • Close one nostril by pressing a finger against it while tilting your head slightly forward.
  • Insert the nasal spray tip into the other nostril, pointing it toward the back of your nose.
  • Breathe in gently through your nose and simultaneously press down on the spray pump to release the medication.
  • Breathe out through your mouth.
  • Repeat steps 3-6 for the other nostril if instructed to use the spray in both nostrils.
  • After using the nasal spray, avoid blowing your nose for a short period to allow the medication to be absorbed properly.

It is essential to use Nasonex regularly and as prescribed by your healthcare provider to obtain the maximum benefit from the medication. If you have any specific questions or concerns about using Nasonex, it is best to consult your doctor or pharmacist for personalized advice.

Other uses for this medicine

While Nasonex is primarily prescribed for the treatment of allergic rhinitis, it may also be used for other medical conditions as determined by a healthcare provider. These off-label uses can include the treatment of nasal polyps, non-allergic rhinitis, and sinusitis. However, the specific usage and dosing for these conditions should be determined by a healthcare professional.

What special precautions should I follow?

When using Nasonex, it is important to take certain precautions to ensure safe and effective use. Here are some general precautions associated with Nasonex:

  • Allergies: Inform your healthcare provider if you have any known allergies, especially to mometasone furoate or any other corticosteroids. This information is crucial to prevent any potential allergic reactions.
  • Medical history: Provide your healthcare provider with a detailed medical history, especially if you have experienced nasal sores, nasal surgery, or any recent infections. Inform them of any eye problems, such as glaucoma or cataracts, as the use of corticosteroids like Nasonex may increase the risk of these conditions.
  • Interactions with other medications: Inform your doctor about any other medications, including prescription drugs, over-the-counter medications, and herbal supplements, that you are currently taking. Certain medications, such as ritonavir (an antiretroviral medication) or ketoconazole (an antifungal medication), may interact with Nasonex and affect its effectiveness.
  • Pregnancy and breastfeeding: If you are pregnant, planning to become pregnant, or breastfeeding, consult your healthcare provider before using Nasonex. The potential risks and benefits should be evaluated, and an alternative medication may be recommended if necessary.
  • Long-term use: Prolonged or excessive use of Nasonex may lead to potential side effects. Regular monitoring by your healthcare provider is important, especially if you require long-term treatment.
  • Proper administration: Follow the instructions provided with the medication or as directed by your healthcare provider for the correct administration technique. Using Nasonex correctly ensures optimal drug delivery and effectiveness.
  • Side effects: Be aware of potential side effects associated with Nasonex, which may include nasal irritation, headache, nosebleeds, or a sore throat. If you experience severe or persistent side effects, inform your healthcare provider.

It’s important to note that these precautions are not exhaustive, and individual circumstances may vary. It is recommended to consult your healthcare provider or pharmacist for specific guidance based on your medical history and condition before using Nasonex.

What special dietary instructions should I follow?

There are no specific dietary instructions associated with the use of Nasonex. You can continue with your regular diet while using this medication. However, if you have any concerns or questions about the interaction between Nasonex and certain foods or dietary supplements, it is advisable to consult your healthcare provider or pharmacist for personalized advice.

What should I do if I forget a dose?

If you forget to take a dose of Nasonex, take it as soon as you remember. However, if it is close to the time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for the missed one.

What side effects can this medication cause?

Nasonex (mometasone furoate nasal spray) may cause certain side effects, although not everyone experiences them. Common side effects associated with the use of Nasonex include:

  • Nasal irritation: This can manifest as a burning or stinging sensation in the nose.
  • Headache: Some individuals may experience headaches while using Nasonex.
  • Nosebleeds: Nasal bleeding may occur, especially if the nasal passages become dry or irritated.
  • Sore throat: Nasonex can sometimes cause a mild sore throat.
  • Sneezing or nasal congestion: In rare cases, Nasonex may cause an increase in sneezing or nasal congestion.
  • Cough: Some individuals may experience a cough while using Nasonex.
  • Unpleasant taste or smell: Nasonex can occasionally cause an altered taste or smell perception.

These side effects are typically mild and temporary. However, if any of these side effects persist or worsen, it is recommended to consult your healthcare provider.

In rare cases, some individuals may experience more severe side effects while using Nasonex. These can include:

  • Allergic reactions: Symptoms may include rash, itching, swelling, severe dizziness, or difficulty breathing. Seek immediate medical attention if you experience these symptoms.
  • Vision changes: Although rare, Nasonex may affect vision or cause blurred vision in some individuals.
  • Signs of corticosteroid effects: Prolonged or excessive use of Nasonex may increase the risk of systemic corticosteroid effects such as Cushing’s syndrome, adrenal suppression, or growth retardation in children. These effects are more likely with high doses or long-term use.

It’s important to note that this is not a complete list of side effects. If you experience any unusual or persistent symptoms while using Nasonex, it is recommended to contact your healthcare provider promptly.

Additionally, be sure to read the medication’s package insert or consult your healthcare provider or pharmacist for a comprehensive list of potential side effects and any specific warnings or precautions associated with Nasonex.

What should I know about storage and disposal of this medication?


  • Store Nasonex at room temperature, away from excessive heat, moisture, and direct sunlight.
  • Avoid storing it in the bathroom.
  • Keep the medication out of reach of children and pets.
  • Do not freeze Nasonex.
  • Check the expiration date and discard any expired or unused medication.


  • Follow your local regulations and guidelines for the proper disposal of Nasonex.
  • Do not dispose of Nasonex by flushing it down the toilet or pouring it down the drain unless specifically instructed to do so.

In case of emergency/overdose

  • If you suspect an overdose or experience severe adverse effects after using Nasonex, immediately seek medical attention or contact your local poison control center.
  • If possible, provide the healthcare professionals with the packaging or information regarding the medication.

What other information should I know?

  • Nasonex is for nasal use only. Do not swallow the nasal spray.
  • It may take a few days of regular use before the full benefits of Nasonex are experienced. Consistent use as prescribed by your healthcare provider is important for optimal results.
  • Inform all your healthcare providers about your use of Nasonex, including your primary care physician, specialists, and dentists, as it may interact with certain medications or affect certain medical conditions.
  • Attend regular check-ups with your healthcare provider to monitor your progress and assess the effectiveness of Nasonex.
  • If you are using other nasal sprays or medications, consult your healthcare provider or pharmacist for guidance on how to properly use them in conjunction with Nasonex.

Remember to always read and follow the instructions provided with Nasonex or consult your healthcare provider or pharmacist for specific guidance related to your individual circumstances.

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