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Nasonex Nasal Spray

from£19.99

Nasonex nasal spray is a prescription medication used to treat symptoms of nasal allergies, such as congestion, sneezing, and runny or itchy nose. It contains mometasone furoate, a corticosteroid that helps reduce inflammation in the nasal passages, providing relief from seasonal allergies (hay fever) and year-round allergies. Nasonex is also used to treat nasal polyps in adults. It is suitable for use in adults and children aged 2 years and older, and its effects typically start within a few days of consistent use.

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Nasonex Nasal Spray
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1 x 140 dose spray, 2 x 140 dose spray, 3 x 140 dose spray, 4 x 140 dose spray, 5 x 140 dose spray, 6 x 140 dose spray

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Overview

Active ingredients

What is it for?

How does it work?

How do you use it?

Warnings and precautions

Side effects

Drug interactions

FAQs

Download patent leaflet

Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Independent prescriber, Superintendent pharmacist.


Checked By
Dr Sarah Thornton
MbChB, Coaching Academy diploma with distinction

Medical coaching


What is Nasonex nasal spray?

Nasonex Nasal Spray contains mometasone furoate, a medication belonging to a class of drugs known as corticosteroids. Corticosteroids are powerful anti-inflammatory agents that help reduce swelling, irritation, and inflammation in the body. When mometasone furoate is administered as a nasal spray, it specifically targets the nasal passages to alleviate symptoms associated with nasal allergies and other inflammatory conditions.

By reducing inflammation in the nasal tissues, Nasonex helps relieve symptoms such as nasal congestion, sneezing, itching, and a runny or blocked nose. This makes it an effective treatment for conditions like seasonal allergic rhinitis (hay fever) and perennial allergic rhinitis, where the nasal passages become inflamed due to exposure to allergens like pollen, dust mites, or pet dander. Additionally, Nasonex is used to treat nasal polyps, which are non-cancerous growths inside the nose that can cause similar symptoms.

What is the active ingredient in Nasonex nasal spray?

The active ingredient contained in Nasonex Nasal Spray is: Mometasone furoate (50 micrograms).

What is Nasonex nasal spray used for?

Hay Fever and Perennial Rhinitis

Nasonex is used to relieve the symptoms of hay fever (seasonal allergic rhinitis) and perennial rhinitis in adults and children aged 3 and older. Hay fever is an allergic reaction that occurs at certain times of the year, triggered by inhaling pollen from trees, grasses, weeds, as well as moulds and fungal spores. Perennial rhinitis, on the other hand, can occur year-round and is caused by sensitivities to various allergens such as house dust mites, animal hair (dander), feathers, and certain foods. Nasonex works by reducing swelling and irritation in the nasal passages, effectively relieving symptoms like sneezing, itching, and a blocked or runny nose associated with hay fever and perennial rhinitis.

Nasal Polyps

Nasonex is also used to treat nasal polyps in adults aged 18 and over. Nasal polyps are small, non-cancerous growths that develop on the lining of the nasal passages and typically affect both nostrils. By reducing inflammation in the nose, Nasonex helps to shrink these polyps, alleviating the sensation of nasal blockage and improving breathing through the nose.

How does Nasonex nasal spray work?

Nasonex nasal spray works by delivering mometasone furoate, a corticosteroid, directly to the nasal passages. Mometasone furoate has strong anti-inflammatory properties that help reduce swelling, irritation, and mucus production in the nasal tissues. When used regularly, Nasonex decreases the body's immune response to allergens or irritants, which in turn reduces symptoms like nasal congestion, sneezing, itching, and a runny nose. It is particularly effective in treating conditions like hay fever (seasonal allergic rhinitis), perennial rhinitis, and nasal polyps, helping to clear nasal passages and improve breathing.

How do you use Nasonex nasal spray?

Always use Nasonex exactly as prescribed by your doctor. If you're unsure, consult your doctor or pharmacist. Do not exceed the recommended dose, or use the spray more frequently or for a longer duration than advised by your doctor.

Treatment of Hay Fever and Perennial Rhinitis

For adults and children over 12 years old:
  • The usual dose is two sprays into each nostril once a day.
  • Once your symptoms are under control, your doctor may advise reducing the dose.
  • If your symptoms do not improve, consult your doctor. They may recommend increasing the dose to a maximum of four sprays into each nostril once a day.
For children aged 3 to 11 years:
  • The usual dose is one spray into each nostril once daily.
Some patients may start to feel relief within 12 hours of the first dose, but it may take up to two days to experience the full benefit. Continue using the spray regularly for the best results. If you or your child suffers from severe hay fever, your doctor might recommend starting Nasonex a few days before the pollen season begins to prevent symptoms.

Treatment of Nasal Polyps

For adults over 18 years old:
  • The usual starting dose is two sprays into each nostril once daily.
  • If symptoms are not controlled after 5 to 6 weeks, the dose may be increased to two sprays into each nostril twice daily. Once symptoms are managed, your doctor may suggest reducing the dose.
  • If there is no improvement after 5 to 6 weeks of twice-daily use, contact your doctor.

Preparing and Using Your Nasonex Nasal Spray

Your Nasonex Nasal Spray comes with a dust cap to protect the nozzle and keep it clean. Always remove the dust cap before use and replace it afterward. Priming the Spray:
  • If using the spray for the first time, prime it by pumping the spray 10 times until a fine mist appears:
    1. Shake the bottle gently.
    2. Hold the bottle with your forefinger and middle finger on either side of the nozzle, and your thumb underneath.
    3. Point the nozzle away from you and press down until a fine mist is produced.
  • If you haven’t used the spray for 14 days or more, re-prime it by pumping the spray twice until a fine mist appears.
Using the Spray:
  1. Shake the bottle gently and remove the dust cap.
  2. Gently blow your nose to clear the nostrils.
  3. Close one nostril and insert the nozzle into the other nostril.
  4. Tilt your head slightly forward and keep the bottle upright.
  5. Breathe in gently through your nose while pressing down once on the nozzle to release the spray.
  6. Breathe out through your mouth. Repeat in the same nostril if necessary.
  7. Switch to the other nostril and repeat the steps.
  8. After use, wipe the nozzle with a clean tissue and replace the dust cap.
Cleaning the Spray:
  • Regular cleaning is essential to ensure proper functioning.
  • Remove the dust cap and gently pull off the nozzle.
  • Wash the nozzle and dust cap in warm water, rinse, and let them air dry.
  • Do not use a pin or sharp object to unblock the nozzle, as this can damage it.
  • Reattach the nozzle and dust cap once dry, and re-prime the spray with two pumps after cleaning.

What to Do If You Miss a Dose or Use Too Much

  • Missed Dose: If you forget a dose, use the spray as soon as you remember, then continue as normal. Do not take a double dose to make up for a missed one.
  • Overdose: If you accidentally use more than prescribed, inform your doctor. Using steroids for a long time or in large amounts can rarely affect hormones, potentially impacting growth and development in children.

If You Stop Using Nasonex

Nasonex may start relieving symptoms within 12 hours, but full benefits might take up to two days. It's crucial to use your nasal spray regularly for the best results. Do not stop treatment without your doctor's advice, even if you feel better. If you have any further questions about using Nasonex, consult your doctor or pharmacist.

Who should not take Nasonex nasal spray?

Do Not Use Nasonex If:

  • You are allergic (hypersensitive) to mometasone furoate or any of the other ingredients in this medication, please refer to the patient information leaflet.
  • You have an untreated infection in your nose. Using Nasonex during an untreated nasal infection, such as herpes, can worsen the condition. You should wait until the infection is resolved before starting the nasal spray.
  • You have recently had nose surgery or sustained a nasal injury. The spray should not be used until your nose has fully healed.

Warnings and Precautions:

Consult your doctor or pharmacist before using Nasonex if:
  • You have or have ever had tuberculosis.
  • You have any other infections.
  • You are taking other corticosteroid medications, either orally or by injection.
  • You have cystic fibrosis.
While using Nasonex, contact your doctor if:
  • Your immune system is compromised (if you have difficulty fighting infections) and you come into contact with someone who has measles or chickenpox. You should avoid exposure to these infections.
  • You develop an infection in your nose or throat.
  • You have been using the medication for several months or longer.
  • You experience persistent irritation in your nose or throat.
Using corticosteroid nasal sprays at high doses for extended periods may lead to side effects due to the drug being absorbed into the body. If you experience itching or irritation in your eyes, your doctor may suggest additional treatments alongside Nasonex. If you experience blurred vision or other visual disturbances, contact your doctor.

Use in Children:

When used at high doses for long periods, corticosteroid nasal sprays can cause side effects, such as slowed growth in children. It is recommended that children receiving long-term treatment with nasal corticosteroids have their height regularly monitored. If any changes are noted, inform the doctor.

Pregnancy and Breastfeeding:

There is limited information about the use of Nasonex during pregnancy. It is not known whether mometasone furoate passes into breast milk. If you are pregnant, breastfeeding, think you might be pregnant, or are planning to have a baby, consult your doctor or pharmacist before using this medication.

Driving and Using Machines:

There is no known information on the effects of Nasonex on the ability to drive or operate machinery.

Nasonex Contains Benzalkonium Chloride:

Benzalkonium chloride may cause irritation or swelling inside the nose, especially with prolonged use.

What are the side effects with Nasonex nasal spray?

Like all medications, Nasonex can cause side effects, although not everyone experiences them. Immediate allergic reactions may occur after using this product and can be severe. You should stop using Nasonex and seek immediate medical attention if you experience any of the following symptoms:
  • Swelling of the face, tongue, or throat
  • Difficulty swallowing
  • Hives
  • Wheezing or trouble breathing
When corticosteroid nasal sprays are used at high doses for extended periods, side effects may occur due to the drug being absorbed into the body.

Other Side Effects

Most people do not experience problems after using Nasonex. However, some individuals may encounter side effects, including: Common side effects (may affect up to 1 in 10 people):
  • Headache
  • Sneezing
  • Nosebleeds (very common in people with nasal polyps using Nasonex, with two sprays in each nostril twice a day)
  • Sore nose or throat
  • Nasal ulcers
  • Respiratory tract infection
Side effects with unknown frequency (cannot be estimated from available data):
  • Increased pressure in the eye (glaucoma) and/or cataracts, leading to visual disturbances
  • Damage to the nasal septum (the partition between the nostrils)
  • Changes in taste and smell
  • Difficulty breathing and/or wheezing
  • Blurred vision

Reporting Side Effects

If you experience any side effects, speak with your doctor or pharmacist, including any side effects not listed in this leaflet. You can also report side effects directly through the Yellow Card Scheme at www.mhra.gov.uk/yellowcard or by searching for "MHRA Yellow Card" in the Google Play or Apple App Store. Reporting side effects helps to provide more information on the safety of this medicine.

Does Nasonex nasal spray interact with other medicines?

Inform your doctor or pharmacist if you are taking, have recently taken, or might take any other medications, including those without a prescription. If you are taking other corticosteroid medications for allergies, either orally or by injection, your doctor may advise you to stop taking them once you begin using Nasonex. Some individuals may experience undesirable effects, such as joint or muscle pain, weakness, or depression, after discontinuing oral or injected corticosteroids. You might also develop other allergies, such as itchy, watery eyes or red, itchy skin patches. If you experience any of these symptoms, contact your doctor. Certain medications can increase the effects of Nasonex, so your doctor may want to monitor you closely if you are taking such medications (including some HIV medications like ritonavir or cobicistat).

Nasonex nasal spray FAQs

What is Nasonex and what is it used for?

Nasonex is a nasal spray that effectively treats and prevents the symptoms of allergic rhinitis, including both seasonal (such as hay fever) and year-round allergies caused by factors like house dust and animals. It is also used to treat nasal polyps, which are growths in the nose. The active ingredient in Nasonex is mometasone furoate, a corticosteroid with anti-inflammatory properties that helps reduce inflammation in the nasal passages, alleviating symptoms like congestion, sneezing, and a runny nose. Nasonex is available by prescription and comes in an 18-gram bottle containing approximately 140 metered doses. It is suitable for adults and children over 3 years of age.

What is allergic rhinitis?

Allergic rhinitis is a condition affecting about 20% of people in the UK, where the immune system overreacts to allergens, such as pollen, dust mites, or pet dander, as if they were harmful infections. This overreaction leads to symptoms like sneezing, congestion, and a runny nose. While the exact cause of this immune response is not fully understood, genetics may play a role, as the condition often runs in families. Though generally not serious, allergic rhinitis can be frustrating and may, in rare cases, lead to complications such as sinusitis or middle-ear infections.

How does Nasonex work?

Nasonex cannot cure allergic rhinitis, but it effectively manages the symptoms. The corticosteroid mometasone furoate in Nasonex works by suppressing the immune system's inflammatory response to allergens, preventing the development of allergy symptoms and helping to alleviate symptoms if they have already started.

What are some alternative treatments for allergic rhinitis?

There are several non-medicinal methods and over-the-counter (OTC) products available to help manage hay fever symptoms. These include:
  • Wearing wrap-around sunglasses to protect your eyes from pollen
  • Keeping windows closed on days with high pollen counts
  • Showering immediately after being outdoors to remove pollen from hair and skin
OTC treatments include:
  • Nasal Sprays: Benacort, Pirinase
  • Tablets: Cetirizine, Loratadine
  • Eye Drops: Available to treat allergic conjunctivitis
These treatments are usually tried before moving on to prescription-only medications like Nasonex.

What warnings should I be aware of when using Nasonex?

Nasonex may not be suitable if:
  • You have an injury to your nose
  • You have recently had nasal surgery
  • You have an untreated infection in your nose
Consult your GP before using Nasonex if:
  • You have any infections
  • You have a history of tuberculosis
  • You are taking other corticosteroid medications
  • You have cystic fibrosis
While using Nasonex, inform your GP if:
  • You develop a throat or nasal infection
  • You use the medication for several months or longer
  • You have difficulty fighting infections
  • You experience persistent nasal irritation, which may be caused by the inactive ingredient benzalkonium chloride
Always read the packaging and Patient Information Leaflet, and inform your doctor about any other medications you are taking.

How should I use Nasonex?

For adults and children over 12 years old, the usual dose is 2 sprays in each nostril once daily. You may start to notice symptom improvement within 12 hours, but it can take a few days to achieve the full effect. Steps to use Nasonex:
  1. Shake the bottle gently and remove the dust cap.
  2. Gently blow your nose.
  3. Close one nostril and insert the nozzle into the other nostril.
  4. Tilt your head slightly forward, keeping the bottle upright.
  5. Breathe in gently through your nose while pressing down ONCE on the nozzle to release a fine mist.
  6. Breathe out through your mouth. If needed, repeat the process for the same nostril.
  7. Repeat steps 3 to 6 for the other nostril.

What ingredients are in Nasonex?

The active ingredient in Nasonex is mometasone furoate (50 micrograms per spray). The nasal spray also contains inactive ingredients such as dispersible cellulose, glycerol, sodium citrate, citric acid monohydrate, polysorbate 80, benzalkonium chloride, and purified water.

What are the possible side effects of Nasonex?

While not everyone experiences side effects, some may occur, including:
  • Nosebleeds
  • Irritation in the nose or throat
  • Headache
  • Sneezing
  • Nasal ulcers
  • Respiratory tract infection
If you are concerned about these side effects or if the product affects you in other ways, stop using it and consult your doctor or pharmacist.

Download patient leaflet

https://www.medicines.org.uk/emc/files/pil.1663.pdf

Checked By
Dr Sarah Thornton
MbChB, Coaching Academy diploma with distinction

Medical coaching


Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Independent prescriber, Superintendent pharmacist.


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