What it's for (Indications)
- Mometasone furoate nasal spray is a corticosteroid indicated for the treatment and prevention of symptoms associated with seasonal allergic rhinitis and perennial allergic rhinitis in adults and pediatric patients aged 2 years and older.
- It is also approved for the treatment of nasal polyps in adult patients aged 18 years and older, helping to reduce the size of polyps and alleviate associated symptoms such as nasal congestion and loss of smell.
- This medication effectively reduces nasal inflammation, sneezing, rhinorrhea (runny nose), and nasal itching, providing significant symptomatic relief and improving quality of life for individuals suffering from these chronic nasal conditions.
- Its prophylactic use allows for symptom control before exposure to known allergens, optimizing patient management and symptom control throughout allergy seasons or year-round exposures.
Dosage Information
| Type | Guideline |
|---|---|
| Standard | For adults and adolescents 12 years of age and older, the typical recommended dose for allergic rhinitis is two sprays (50 mcg mometasone furoate per spray) in each nostril once daily, for a total daily dose of 200 mcg. Once symptoms are controlled, a dose reduction to one spray in each nostril (100 mcg total daily dose) may be effective for maintenance therapy. For pediatric patients aged 2 to 11 years, the recommended dose is one spray (50 mcg) in each nostril once daily, for a total daily dose of 100 mcg. For the treatment of nasal polyps in adults aged 18 years and older, the usual dose is two sprays (50 mcg) in each nostril twice daily, for a total daily dose of 400 mcg. Alternatively, two sprays in each nostril once daily may be considered for maintenance after initial control. Consistent daily administration is crucial for optimal therapeutic benefit, and patients should be advised on proper nasal spray technique, including shaking the bottle well before each use and priming the pump if not used for a period, to ensure effective and accurate medication delivery. |
Safety & Warnings
Common Side Effects
- Common adverse reactions associated with mometasone furoate nasal spray include epistaxis (nosebleeds), headache, pharyngitis (sore throat), nasal irritation, nasal burning, and sneezing, particularly during the initial phase of treatment.
- Less common but potentially serious side effects may include localized candidiasis (yeast infection) of the nose and pharynx, nasal septal perforation, and impaired wound healing, especially following nasal surgery or trauma.
- Prolonged use, especially at higher doses or in susceptible individuals, carries a rare but possible risk of systemic corticosteroid effects, including ocular complications such as glaucoma or cataracts.
- Patients should be advised to report any persistent or worsening symptoms, unusual bleeding, vision changes, or signs of infection (e.
- g.
- , white patches in the nose or throat) to a healthcare professional immediately to ensure appropriate evaluation and management.
Serious Warnings
- Black Box Warning: Mometasone furoate nasal spray does not carry an FDA Black Box Warning. However, it is crucial for healthcare professionals and patients to be aware of several **Serious Warnings** associated with its use. These include the potential for systemic corticosteroid effects, particularly with prolonged use or at higher than recommended dosages, which can manifest as adrenal suppression, growth retardation in pediatric patients, and decreased bone mineral density. Patients with active or quiescent tuberculosis infections of the respiratory tract, or untreated fungal, bacterial, systemic viral infections, or ocular herpes simplex, should use this medication with extreme caution, as corticosteroids can exacerbate or mask these conditions, potentially leading to severe complications. There is also a significant risk of localized adverse effects such as nasal septal perforation and *Candida albicans* infection in the nose and pharynx, necessitating regular monitoring of the nasal mucosa. Impaired wound healing may occur, and ocular effects like glaucoma and cataracts have been reported with long-term use, warranting periodic ophthalmic examinations for patients on extended therapy. Therefore, the lowest effective dose should always be employed, and patients should be closely monitored for any signs of adverse events.
- Although mometasone furoate nasal spray has low systemic bioavailability, prolonged use or use at higher than recommended doses may lead to systemic corticosteroid effects.
- These potential effects include adrenal suppression, growth retardation in children, and decreased bone mineral density, emphasizing the importance of using the lowest effective dose.
- Patients who are immunocompromised due to concurrent corticosteroid therapy, underlying disease, or other causes should be warned of increased susceptibility to infections, including the risk of exacerbation of existing infections (e.
- g.
- , tuberculosis, fungal, bacterial, viral, or parasitic infections).
- Close medical monitoring is advised for patients transitioning from systemic corticosteroids.
- Local nasal effects such as nasal septal perforation and *Candida albicans* infection have been reported; regular examination of the nasal mucosa is recommended.
- Impaired wound healing may occur, thus nasal corticosteroids should not be used in patients with recent nasal surgery or trauma until complete healing has occurred.
- Ocular effects such as glaucoma and cataracts may develop with prolonged use, warranting periodic eye examinations for long-term users.
- Careful consideration is required for patients with a history of ocular herpes simplex.
How it Works (Mechanism of Action)
Mometasone furoate is a synthetic corticosteroid with potent anti-inflammatory properties. Its primary mechanism of action involves binding to glucocorticoid receptors within the cell, forming a complex that translocates to the nucleus and modulates gene expression. This leads to the inhibition of the synthesis and release of various inflammatory mediators, including histamine, leukotrienes, and prostaglandins, which are crucial in the pathogenesis of allergic and inflammatory responses. It also suppresses the recruitment and activity of inflammatory cells such as mast cells, eosinophils, neutrophils, and lymphocytes, which contribute significantly to nasal inflammation. This multi-faceted anti-inflammatory and immunosuppressive action reduces nasal mucosal edema, decreases mucus production, and alleviates irritation, thereby providing effective symptomatic relief for allergic rhinitis and reducing the size and inflammation of nasal polyps. Its localized action minimizes systemic side effects compared to oral corticosteroids.
Commercial Brands (Alternatives)
No other brands found for this formula.