Nasonex (Mometasone) Nasal Spray 50mcg (140 Dose)

What Is Mometasone Nasal Spray and How Does It Help?

If you've ever struggled through hay fever season with a blocked, streaming nose and constant sneezing, you'll know how much it can disrupt daily life. Mometasone nasal spray — sold under the brand name Nasonex — is a corticosteroid nasal spray that targets inflammation directly inside the nasal passages, providing effective relief from the symptoms of allergic rhinitis. Each actuation delivers 50mcg of mometasone furoate, and this 140-dose bottle gives you a generous supply to see you through the season. You can explore the full range of allergy and hay fever treatments available at Cured Pharmacy if you're looking for a broader approach to managing your symptoms.

Mometasone furoate has been used clinically for decades and is well-established in the management of both seasonal and perennial allergic rhinitis, as well as nasal polyps. It works locally in the nasal tissue, meaning very little of the active ingredient is absorbed into the bloodstream — which is one reason it's considered a well-tolerated option for ongoing use.

How Does Nasonex Mometasone Nasal Spray Work?

Allergic rhinitis occurs when your immune system overreacts to airborne allergens such as pollen, dust mites, or pet dander. This triggers a cascade of inflammation in the nasal lining. Mometasone furoate works by binding to glucocorticoid receptors inside nasal cells, suppressing the release of inflammatory chemicals — including histamine, prostaglandins, and leukotrienes — that cause your symptoms.

• Reduces swelling and congestion in the nasal passages
• Decreases mucus production, easing a runny nose
• Suppresses the sneezing reflex triggered by allergen exposure
• Provides relief from itching inside the nose

Because it acts locally rather than systemically, it doesn't cause the drowsiness associated with antihistamine tablets — making it a practical choice for people who need to stay alert at work or while driving.

Who Should Use Nasonex Nasal Spray?

Nasonex is suitable for adults aged 18 and over who experience nasal symptoms related to allergic rhinitis. It's particularly useful if antihistamine tablets alone aren't giving you enough relief, or if nasal congestion is your most troublesome symptom. It can be used for both seasonal allergic rhinitis (such as hay fever triggered by grass or tree pollen) and perennial allergic rhinitis (year-round symptoms caused by dust mites or animal dander).

• Adults aged 18 and over with seasonal allergic rhinitis
• Those with perennial (year-round) allergic rhinitis
• People who find antihistamines alone insufficient
• Individuals who prefer a non-drowsy treatment option

It is not recommended for use in children under 18 without medical supervision in an OTC setting. Always read the patient information leaflet before use.

How Does Nasonex Compare to Other Nasal Sprays?

Is Nasonex Suitable for Long-Term Use and How Should It Be Stored?

For people with perennial allergic rhinitis, mometasone nasal spray may be used over longer periods under the guidance of a GP or pharmacist. For OTC use in seasonal allergic rhinitis, it should not be used for more than three months without seeking medical advice. If you're managing multiple allergy-related conditions — for example, if your eyes are also affected — you might also want to look at our eye care range for complementary relief.

Store the bottle upright at room temperature, below 25°C. Do not freeze it, and keep it out of direct sunlight. Always replace the cap after use to keep the nozzle clean. Check the expiry date before each use, and discard the bottle 6 months after first opening.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is Nasonex Nasal Spray and What Is It Used For?

Nasonex Mometasone Nasal Spray 50mcg is an intranasal corticosteroid used to treat the symptoms of seasonal and perennial allergic rhinitis in adults aged 18 and over. It is also used, under medical supervision, for the treatment of nasal polyps. Each spray delivers 50mcg of mometasone furoate directly into the nasal passages, where it reduces inflammation and relieves symptoms including nasal congestion, sneezing, a runny nose, and nasal itching. The NHS recognises corticosteroid nasal sprays as a first-line treatment for allergic rhinitis because they address the underlying inflammation rather than just masking symptoms.

What Do You Need to Know Before Using Nasonex Mometasone Spray?

Before using this spray, it's important to check whether it's appropriate for you. Do not use Nasonex if any of the following apply:

• You are allergic to mometasone furoate or any other ingredient in the spray
• You have had recent nasal surgery or a nasal injury — wait until healing is complete
• You have an active or untreated nasal or sinus infection
• You are under 18 years of age (OTC use)
• You are pregnant or breastfeeding — seek medical advice first

The following medicines may interact with mometasone furoate and should be discussed with your pharmacist or GP:

• Ketoconazole and other strong CYP3A4 inhibitors — may increase mometasone levels in the blood
• Other corticosteroids (oral, inhaled, or topical) — combined use may increase the risk of systemic steroid effects
• Ritonavir and other HIV protease inhibitors — potential for increased systemic exposure

If you are already using other steroid-containing medicines, speak to your pharmacist before starting this spray. You can also browse our ear, nose and throat range for additional products that may support your treatment.

How Should You Use Nasonex Mometasone Nasal Spray?

Using the spray correctly makes a real difference to how well it works. Follow these steps each time:

1. Shake the bottle gently before use
2. Blow your nose to clear the nasal passages
3. Remove the dust cap from the nozzle
4. Tilt your head slightly forward — do not tilt it back
5. Close one nostril with a finger and insert the nozzle into the other
6. Press the pump once while breathing in gently through your nose
7. Breathe out through your mouth
8. Repeat for the other nostril
9. Replace the dust cap after use

If you are using the spray for the first time, or if it hasn't been used for more than a week, prime the pump by pressing it several times until a fine mist appears.

What Are the Possible Side Effects of Nasonex Nasal Spray?

Like all medicines, Nasonex can cause side effects, although not everyone experiences them. Most side effects are mild and localised to the nose and throat.

Common side effects (may affect up to 1 in 10 people):

• Nosebleeds (epistaxis)
• Nasal irritation or burning sensation
• Headache
• Throat irritation or soreness

Less common side effects (may affect up to 1 in 100 people):

• Nasal ulceration
• Altered or reduced sense of smell (anosmia)
• Nasal septal perforation (rare — particularly with long-term use)
• Raised intraocular pressure or glaucoma (rare)
• Hypersensitivity reactions including rash, urticaria, or angioedema

If you experience a severe nosebleed, vision changes, or signs of an allergic reaction, stop using the spray and seek medical attention promptly. Long-term use of any corticosteroid nasal spray should be monitored by a healthcare professional. You may also find it helpful to explore our cold and flu range if nasal symptoms are accompanied by other upper respiratory complaints.

How Should You Store Nasonex Nasal Spray?

• Store below 25°C — do not refrigerate or freeze
• Keep the bottle upright at all times
• Store away from direct sunlight and heat sources
• Keep out of the reach and sight of children
• Do not use after the expiry date printed on the label
• Discard the bottle 6 months after first opening, even if product remains
• Do not dispose of medicines via wastewater or household waste — return to your pharmacy