Mometasone nasal spray

  • Mometasone spray relieves symptoms such as congestion, sneezing and itching of the nose.
  • It will take a few days of treatment before you feel the full effect.
  • If you are using this spray for hay fever, start using it a couple of weeks before the hay fever season starts.
Type of medicine Corticosteroid
Used for Allergic conditions of the nose
Nasal polyps
Also called Nasonex®
Available as Nasal spray

Mometasone nasal spray can be used by adults and children from the age of 6 years to prevent or ease the symptoms of allergic rhinitis. This is when the inside of the nose is inflamed and irritated. Common symptoms include: sneezing, a blocked or congested nose, a watery discharge (runny nose), and an itchy nose. It is caused by hay fever and other allergies.

Exposure to irritants such as pollen, pet fur, or house dust mite can cause the body to produce a chemical called histamine. The release of histamine causes the lining of the nose to become swollen and itchy which, in turn, causes the sneezing and other symptoms. Mometasone reduces inflammation and swelling and so relieves the congestion, itching, sneezing, irritation and discomfort.

Mometasone nasal spray is also used for nasal polyps, which are small growths inside the nose that can cause symptoms similar to rhinitis.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start using mometasone, it is important that your doctor or pharmacist knows:

  • If you have an infection in your nose.
  • If you have recently had any surgery on your nose.
  • If you have tuberculosis (TB).
  • If you are pregnant, trying for a baby or breast-feeding.
  • If you are taking other medicines, including those available to buy without a prescription, herbal and complementary medicines.
  • If you have ever had an allergic reaction to this or to any other medicine.
  • Before you start this treatment, read the manufacturer's printed information leaflet from inside the pack. This will give you a step-by-step guide of how to use the spray, and will also give you a full list of possible side-effects from using it.
  • When you first start using mometasone, it is usual to use two sprays into both nostrils each morning for adults, and just one spray into each nostril each morning for children. This dose may then be adjusted depending upon how well your symptoms are controlled. It is important that you use the spray regularly, even if your symptoms are controlled. Your doctor will advise you how long to use the spray for.
  • Do not use the spray more frequently or for longer periods than your doctor has recommended. This can increase the risk of side-effects.
  • If you are using the spray for hay fever, your doctor may recommend that you start using it about 2-3 weeks before the hay fever season starts. This is because it takes a few days of treatment before you feel the full effect, so starting before the pollen count rises will help to prevent symptoms from developing.
  • If you need to use this spray over several months, your doctor may want to monitor your progress. This is particularly important for children who use this spray.

Before you use the spray for the first time, you need to 'prime' the bottle by pumping the spray into the air about ten times until you see a fine mist.

  • Blow your nose gently.
  • Shake the bottle and remove the protective cap.
  • Put one finger on each side of the nozzle and then insert the nozzle of the spray into one of your nostrils (take care to keep the bottle upright as you do this). Next, breathe in through your nose and press down on the nozzle once. Breathe out through your mouth, and then if you are using two sprays, repeat this step.
  • Use the spray in the other nostril by repeating the above step.
  • Wipe the nozzle with a tissue and replace the protective cap. (If the nozzle becomes blocked, you can remove it from the bottle and rinse it under warm water.)

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. These usually improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.

Common mometasone nasal spray side-effects - these affect less than 1 in 10 people who use this medicine What can I do if I experience this?
Nasal soreness, irritation or stinging, and nosebleeds If any of these continue or become troublesome, speak with your doctor
Headache Ask your pharmacist to recommend a suitable painkiller
Throat irritation Try chewing sugar-free gum or sucking sugar-free sweets. If this continues or becomes troublesome, speak with your doctor
  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light. It can be used for up to two months after the bottle has been opened. After this time, get a fresh supply.
  • If you buy any medicines check with a pharmacist that they are safe to take with your other medicines.
  • Never take more than the prescribed dose. If you suspect that someone has taken an overdose of this medicine, go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.
  • If you are having an operation or dental treatment, tell the person carrying out the treatment which medicines you are taking.
  • This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
  • Never keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
  • If you have any questions about this medicine ask your pharmacist.

Further reading & references

Original Author: Helen Allen Current Version: Peer Reviewer: Prof Cathy Jackson
Last Checked: 18/04/2012 Document ID: 1177  Version: 24 © EMIS

Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions. EMIS has used all reasonable care in compiling the information but make no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. For details see our conditions.