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[Unbranded Nasonex]

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Mometasone is an anti-allergy medication. It is sometimes known under the brand name Nasonex. Mometasone is used to treat symptoms of allergic rhinitis, which is inflammation of the nose caused by an allergen. Common symptoms can include sneezing, itchy, watery eyes or runny nose.
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What is Mometasone?

Mometasone (also known under the brand name Nasonex) is an anti allergy medication. It is used to treat and control symptoms of allergic rhinitis. Allergic rhinitis is inflammation of the sinuses, as a result of exposure to an allergen. Allergens that can trigger a reaction include flakes of skin from animals, dust or pollen. Allergic rhinitis can be seasonal or perennial.

Mometasone is a prescription only medication. You must have a prescription in order to buy Mometasone. Alternatively, we can prescribe it to you following a brief online consultation. Contact us to find out more.

Mometasone can also be used to treat nasal conditions such as nasal polyps - small growths within the nose. However, we only prescribe it to treat allergic rhinitis. If you have nasal polyps it is recommended that you see your doctor for advice.

The active ingredient in Mometasone is mometasone furoate. For more information, please consult the patient information leaflet.

How it works

Allergic rhinitis is caused by the production of histamine in the body. When the body is exposed to an allergen, it produces histamine, and this can cause swelling and inflammation in the nasal passages and sinuses. This can result in nasal symptoms such as a runny nose and sneezing.

Mometasone nasal spray is a clear solution that you spray into your nostrils. It is a corticosteroid medication, meaning that it works to reduce nasal inflammation when sprayed into the nostrils.

Mometasone should begin working within 12 - 48 hours of the first dose.

Before you take it

Do not use Mometasone/Nasonex if you are allergic to the active ingredient, mometasone furoate, or any of the other ingredients within the medication. A full list of ingredients is listed in the patient information leaflet. If you are allergic, you should ask your doctor to recommend an alternative medication to treat your symptoms.

If you have an untreated infection in your nose, such as herpes, using Mometasone can make it worse. You must wait until the infection has been treated before using Mometasone to treat your symptoms.

If you have recently had an operation on your nose, or suffered an injury to your nose, you must wait until your nose has fully healed before you use Mometasone.

There is little research into the effects of Mometasone on pregnant women or on an unborn baby. You should not use Mometasone during pregnancy unless specifically advised to by your doctor. Your doctor will only prescribe it to you if they feel the benefits of taking it outweigh the potential risks.

It is not known if Mometasone passes into breast milk. You should not use Mometasone while you are breastfeeding unless your doctor has specifically told you to. The effects of Mometasone on a nursing baby are currently unknown.

Mometasone is not expected to affect your ability to drive or operate machinery. However, as with all medication, you must exercise caution and should not do anything that requires acute concentration until you know exactly how this medication affects you.

If you are taking other any other corticosteroid medication, your doctor may advise you to stop taking it before you use Mometasone. You may experience unwanted side effects as you stop taking a corticosteroid medication, such as watery eyes, joint or muscle pain or depression. Tell your doctor if you experience any of these symptoms.

If you use corticosteroid medication for a long time, it may affect your hormones. In children this can cause changes in growth and development. Speak to your doctor for more advice.

You must talk to your doctor or pharmacist before you use Mometasone if you are suffering from tuberculosis or from cystic fibrosis, if your immune system is not functioning well (you experience difficulty fighting infections) or if you come into contact with anyone with measles or chickenpox.

Mometasone can cause interactions with other medicines. You should not use Mometasone before talking to your doctor if you are also taking any of the following:

  • Any medication to treat HIV, such as ritonavir or cobicistat
  • Any other corticosteroid medication, such as treatment for asthma or nasal sprays

This is not a full list of warnings or interactions. For a complete list, please consult the patient information leaflet.

Dosage Instructions

You must always use Mometasone as prescribed by your doctor or pharmacist. Never exceed the stated dose. If you are in any way unsure of how to use it, consult your doctor or pharmacist for advice.

The typical recommended dose of Mometasone is to spray twice into each nostril, once daily. Once your symptoms are under control, your doctor may advise you to reduce your dose.

For full instructions on how to use the spray, consult the patient information leaflet. Alternatively, ask your doctor or pharmacist for advice.

Do not spray Mometasone into the mouth or the eyes. Only spray it into the nose.

Mometasone may take between 12 - 48 hours to begin working properly. You should not use it preemptively (before you experience symptoms.)

Store Mometasone in a cool, dry place, free from heat and moisture. Keep it out of the reach of children and pets.

Common Side Effects of Mometasone

Mometasone, like all medication, may cause undesirable side effects. These are usually mild or moderate in nature, and as your body gets used to the medication, they should go away on their own. However, if they persist, you may wish to consult your doctor for advice. Side effects may include:

  • Headache
  • Nosebleeds
  • Sneezing
  • Sore nose or throat
  • Ulcers in the nose
  • Respiratory tract infection

Mometasone can also cause more serious side effects. These are more rare, but if you experience any of these adverse effects, you should go to your doctor. Side effects can include:

  • Increased pressure in the eye (glaucoma)
  • Damage to the partition separating the nostrils
  • Change in taste or smell
  • Blurred vision

Mometasone may also cause a severe allergic reaction. This is extremely rare, but an allergic reaction is an emergency. If you believe you are experiencing one, it is very important that you seek medical help immediately. Symptoms of an allergic reaction can include:

  • Tightness in the chest or throat
  • Wheezing or difficulty breathing
  • Swelling of the face, lips, tongue, mouth or throat
  • Hives or nettle rash

This is not an exhaustive list of side effects. For a complete list, you must read the patient information leaflet. You can report side effects to your doctor if you experience any that are not listed here.

Frequently Asked Questions (FAQs)

Is Mometasone suitable for children?

Mometasone can be used by children 3 years of age and over to treat symptoms of perennial or seasonal allergic rhinitis, if specifically prescribed by a doctor. However, we do not prescribe any medication to anyone under 18 years of age.

I’m pregnant. Can I use Mometasone?

You should not generally use Mometasone while pregnant, as it is not known if or how it affects an unborn baby. You must speak with your doctor if you are pregnant and want to use Mometasone. Only use it if your doctor or pharmacist tells you to.

What happens if I miss a dose?

If you miss a dose, use Mometasone as soon as you remember. However, if it is nearly time for your next dose, skip the missed dose and use your next dose as scheduled. Never double up to make up for a missed dose.

What happens if I use too much?

An overdose of Mometasone is unlikely to cause harm. However, you may experience increased side effects. If you have accidentally used too much Mometasone, you should seek medical advice from your doctor. If you or a child accidentally drinks Mometasone, you must immediately go to your local hospital casualty department for advice.

More Information
Dosage 50 mcg
Subtitle [Unbranded Nasonex]
Dosage Instructions TWO sprays in each nostril ONCE a day.