NutriStack
Mometasone Nasal
Prescription ·Strong evidence ·Reviewed May 2026
An intranasal corticosteroid for the treatment of allergic rhinitis (seasonal and perennial) and nasal polyps. Mometasone furoate nasal spray has one of the lowest systemic bioavailabilities (<0.1%) among intranasal corticosteroids, making it particularly attractive when minimizing systemic steroid effects is important (e.g., in children). Approved for prophylactic use starting 2-4 weeks before anticipated allergy season. Also used for nasal polyps to reduce polyp size and improve congestion.
The bottom line
Evidence rating strong. Most-documented uses: treats seasonal and perennial allergic rhinitis, prophylactic use before allergy season (start 2-4 weeks prior), treats nasal polyps (reduces polyp size). 10 sources indexed (2008–2025), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Binds to the intracellular glucocorticoid receptor with high affinity (relative receptor affinity approximately 2200, among the highest of all corticosteroids). The activated receptor-steroid complex suppresses NF-kB and AP-1 transcription pathways, reducing production of pro-inflammatory cytokines, prostaglandins, leukotrienes, and adhesion molecules. This decreases inflammatory cell infiltration (eosinophils, mast cells, lymphocytes) in the nasal mucosa, reducing mucosal edema, vascular permeability, and mucus secretion.
Dosing & protocol.
Applied intranasally. Systemic bioavailability <0.1%, the lowest of all commercially available intranasal corticosteroids. Any swallowed drug undergoes extensive first-pass hepatic metabolism. Shake well before use. Prime before first use and after periods of non-use (>1 week).10
Full safety detail.
Side effects
- Epistaxis (nosebleed)
- Headache
- Pharyngitis
- Nasal irritation or burning
- Viral upper respiratory infection
- Nasal septal perforation (rare, with improper spray technique)
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
3- 1Comparative efficacy of intranasal mometasone furoate monotherapy or combination therapy with montelukast in pediatric adenoid hypertrophy: A systematic review and meta-analysis of randomized clinical trialsNeeds reviewPMIDAlmutairi RH, Albesher MB, Alboqami RA et al. · International journal of pediatric otorhinolaryngology · 2025
Almutairi RH, Albesher MB, Alboqami RA et al.. Comparative efficacy of intranasal mometasone furoate monotherapy or combination therapy with montelukast in pediatric adenoid hypertrophy: A systematic review and meta-analysis of randomized clinical trials. International journal of pediatric otorhinolaryngology. 2025
- 2Impact of mometasone furoate nasal spray on individual ocular symptoms of allergic rhinitis: a meta-analysisNeeds reviewPMIDBielory L, Chun Y, Bielory BP et al. · Allergy · 2011
Bielory L, Chun Y, Bielory BP et al.. Impact of mometasone furoate nasal spray on individual ocular symptoms of allergic rhinitis: a meta-analysis. Allergy. 2011
- 3Efficacy of mometasone furoate nasal spray in the treatment of allergic rhinitis. Meta-analysis of randomized, double-blind, placebo-controlled, clinical trialsNeeds reviewPMIDPenagos M, Compalati E, Tarantini F et al. · Allergy · 2008
Penagos M, Compalati E, Tarantini F et al.. Efficacy of mometasone furoate nasal spray in the treatment of allergic rhinitis. Meta-analysis of randomized, double-blind, placebo-controlled, clinical trials. Allergy. 2008
Randomized controlled trials
2- 4Safety and onset time of modified Yupingfeng nasal spray versus mometasone furoate nasal spray on house dust mites-induced moderate to severe allergic rhinitis: A prospective, multicenter, randomized, open-label, parallel-group clinical trialNeeds reviewPMIDWang H, Liu T, Liao C et al. · Journal of ethnopharmacology · 2025
Wang H, Liu T, Liao C et al.. Safety and onset time of modified Yupingfeng nasal spray versus mometasone furoate nasal spray on house dust mites-induced moderate to severe allergic rhinitis: A prospective, multicenter, randomized, open-label, parallel-group clinical trial. Journal of ethnopharmacology. 2025
- 5Effectiveness of Intranasal Mometasone Furoate vs Saline for Sleep-Disordered Breathing in Children: A Randomized Clinical TrialNeeds reviewPMIDBaker A, Grobler A, Davies K et al. · JAMA pediatrics · 2023
Baker A, Grobler A, Davies K et al.. Effectiveness of Intranasal Mometasone Furoate vs Saline for Sleep-Disordered Breathing in Children: A Randomized Clinical Trial. JAMA pediatrics. 2023
Reference material
5- 6Brozek JL et al. Allergic rhinitis and its impact on asthma (ARIA) guidelines, 2016 revision. J Allergy Clin Immunol. 2017.Source linkedPMID
- 7Scadding GK et al. BSACI guidelines for the management of allergic and non-allergic rhinitis. Clin Exp Allergy. 2008.Source linkedPMID
- 8Stjarne P et al. A randomized controlled trial of mometasone furoate nasal spray for the treatment of nasal polyposis. Arch Otolaryngol Head Neck Surg. 2006.Source linkedPMID
- 9Lazarus SC, Krishnan JA, King TS et al.. Mometasone or Tiotropium in Mild Asthma with a Low Sputum Eosinophil Level. The New England journal of medicine. 2019Source linkedPMID
- 10Ghanbari N, Eftekhari K, Samadzadeh-Mamaghani M et al.. Comparative Efficacy of Mometasone Nasal Spray Combined with Different Doses of Desloratadine, and Montelukast in Childhood Allergic Rhinitis: A Randomized Clinical Trial. Iranian journal of allergy, asthma, and immunology. 2024Source linkedPMID
Deep dives & adjacent profiles.
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