Mometasone furoate (mometasone)

What Mometasone furoate (mometasone) is used for

Quoted from the “Indications and Usage” section of the FDA-approved label.

Mometasone furoate nasal spray is a corticosteroid indicated for: Prophylaxis of Nasal Symptoms of Seasonal Allergic Rhinitis in adult and pediatric patients 12 years of age and older Treatment of Chronic Rhinosinusitis with Nasal Polyps in adult patients 18 years of age and older 1.1 Prophylaxis of Seasonal Allergic Rhinitis Mometasone furoate nasal spray is indicated for the prophylaxis of the nasal symptoms of …

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

Label quoted: the one for the most common form (spray, metered, nasal), Mometasone Furoate, Golden State Medical Supply, Inc.; it covers 1 product in the FDA NDC Directory. The side effects, interactions, dosage and pregnancy quotes below come from this same label.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or change any medicine.

Boxed warning

A boxed warning (“black box”) is the FDA’s strongest warning on a drug label, for serious or life-threatening risks.

The label quoted above has no boxed warning.

Mometasone furoate (mometasone) side effects

Quoted from the “Adverse Reactions” section of the FDA-approved label. Tell your doctor about any side effect that worries you.

The following clinically significant adverse reactions are described elsewhere in labeling: Epistaxis, Ulcerations, Candida albicans Infection, Impaired Wound Healing [see Warnings and Precautions (5.1)] Glaucoma and Cataracts [see Warnings and Precautions (5.2)] Immunosuppression and Risk of Infections [see Warnings and Precautions (5.4)] Hypercorticism and Adrenal Suppression, including Growth Reduction [see Warnings and Precautions (5.5, 5.6), Use in Specific Populations (8.4)] The most common adverse reactions (incidence ≥5%) included headache, viral infection, pharyngitis, epistaxis and cough.

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(6) To report SUSPECTED ADVERSE REACTIONS, contact Apotex Corp. at 1-800-706-5575 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Allergic Rhinitis Adults and pediatric patients 12 years of age and older In controlled U.S. and international clinical studies, a total of 3,210 adult and pediatric patients 12 years and older with allergic rhinitis received treatment with mometasone furoate nasal spray at doses of 50 to 800 mcg/day. The majority of patients (n=2,103) were treated with 200 mcg/day. A total of 350 adult and pediatric patients 12 years and older have been treated for one year or longer. Adverse reactions did not differ significantly based on age, sex, or race. Four percent or less of patients in clinical trials discontinued treatment because of adverse events and the discontinuation rate was similar for the vehicle and active comparators. All adverse reactions (regardless of relationship to treatment) reported by 5% or more of adult and pediatric patients ages 12 years and older who received mometasone furoate nasal spray, 200 mcg/day vs. placebo and that were more common with mometasone furoate nasal spray than placebo, are displayed in Table 1 below. Table 1: Adult and Pediatric Patients 12 Years and Older – Adverse Reactions from Controlled Clinical Trials in Seasonal Allergic and Perennial Allergic Rhinitis (Percent of Patients Reporting) Mometasone Furoate Nasal Spray 200 mcg (n = 2,103) % Vehicle Placebo (n = 1,671) % Headache 26 22 Viral Infection 14 11 Pharyngitis 12 10 Epistaxis/Blood-Tinged Mucus 11 6 Coughing 7 6 Upper Respiratory Tract Infection 6 2 Dysmenorrhea 5 3 Musculoskeletal Pain 5 3 Sinusitis 5 3 Other adverse reactions which occurred in less than 5% but greater than or equal to 2% of adult and pediatric patients (ages 12 years and older) treated with mometasone furoate nasal spray 200-mcg/day (regardless of relationship to treatment), and more frequently than in the placebo group included: arthralgia, asthma, bronchitis, chest pain, conjunctivitis, diarrhea, dyspepsia, earache, flu-like symptoms, myalgia, nausea, and rhinitis. Chronic Rhinosinusitis with Nasal Polyps Adults 18 years of age and older In controlled clinical studies, the types of adverse reactions observed in patients with chronic rhinosinusitis with nasal polyps were similar to those observed in patients with allergic rhinitis.

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. This is part of the section. Read the full label on DailyMed →

Mometasone furoate (mometasone) drug interactions

Quoted from the “Drug Interactions” section of the FDA-approved label. Tell your pharmacist about every medicine, vitamin and herbal product you take.

No formal drug-drug interaction studies have been conducted with mometasone furoate nasal spray. Inhibitors of Cytochrome P450 3A4: Studies have shown that mometasone furoate is primarily and extensively metabolized in the liver of all species investigated and undergoes extensive metabolism to multiple metabolites. In vitro studies have confirmed the primary role of cytochrome CYP3A4 in the metabolism of this compound.

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Concomitant administration of CYP3A4 inhibitors may inhibit the metabolism of, and increase the systemic exposure to, mometasone furoate and potentially increase the risk for systemic corticosteroid side effects. Caution should be exercised when considering the coadministration of mometasone furoate nasal spray with long-term ketoconazole and other known strong CYP3A4 inhibitors (e.g., ritonavir, cobicistat-containing products, atazanavir, clarithromycin, indinavir, itraconazole, nefazodone, nelfinavir, saquinavir, telithromycin) [see Clinical Pharmacology (12.3)]. Consider the benefit of coadministration versus the potential risk of systemic corticosteroid effects, in which case patients should be monitored for systemic corticosteroid side effects.

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

Mometasone furoate (mometasone) dosage

Quoted from the “Dosage and Administration” section of the FDA-approved label. Your own dose is the one your doctor prescribes: do not change it on your own.

For Nasal Use Only Prophylaxis of Seasonal Allergic Rhinitis in Adult and Pediatric Patients 12 Years of Age and Older: 2 sprays in each nostril once daily (2.2) Treatment of Chronic Rhinosinusitis with Nasal Polyps in Adults (18 yrs. and older): 2 sprays in each nostril twice daily. 2 sprays in each nostril once daily may also be effective in some patients (2.3) 2.1 Preparation and Administration Administer mometasone furoate nasal spray by the nasal route only.

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Initial Priming Prior to initial use of mometasone furoate nasal spray, the pump must be primed by actuating ten times or until a fine spray appears. The pump may be stored unused for up to 1 week without repriming. Repriming (as needed) If unused for more than 1 week, reprime by actuating two times, or until a fine spray appears. 2.2 Recommended Dosage for Prophylaxis of Seasonal Allergic Rhinitis The recommended dosage for prophylaxis treatment of nasal symptoms of seasonal allergic rhinitis in adult and pediatric patients 12 years and older is mometasone furoate nasal spray 2 sprays (2 sprays deliver a total of 100 mcg of mometasone furoate) in each nostril once daily (total daily dose of 200 mcg). In patients with a known seasonal allergen that precipitates nasal symptoms of seasonal allergic rhinitis, prophylaxis with 2 sprays (2 sprays deliver a total of 100 mcg of mometasone furoate) in each nostril once daily (total daily dose of 200 mcg) is recommended 2 to 4 weeks prior to the anticipated start of the pollen season. 2.3 Recommended Dosage for Treatment of Chronic Rhinosinusitis with Nasal Polyps The recommended dosage for the treatment of chronic rhinosinusitis with nasal polyps in adults 18 years and older is mometasone furoate nasal spray 2 sprays (2 sprays deliver a total of 100 mcg of mometasone furoate) in each nostril twice daily (total daily dose of 400 mcg). A dose of 2 sprays (2 sprays deliver a total of 100 mcg of mometasone furoate) in each nostril once daily (total daily dose of 200 mcg) is also effective in some patients.

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

Mometasone furoate (mometasone) in pregnancy

Quoted from the pregnancy part of the FDA-approved label. Ask your doctor before you take any medicine while pregnant or planning a pregnancy.

Risk Summary Mometasone is minimally absorbed systemically following nasal use, and maternal use is not expected to result in fetal exposure to the drug. Available data from observational studies of mometasone use in pregnant women are insufficient to evaluate for a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes.

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In animal reproduction studies with pregnant mice, rats, or rabbits (subcutaneous, subcutaneous/topical dermal/oral, and topical dermal/oral, respectively), mometasone furoate caused increased fetal malformations and decreased fetal survival and growth following administration of doses that produced exposures approximately 1/3 to 8 times the maximum recommended human dose (MRHD) on a mcg/m 2 or AUC basis [see Data]. However, experience with oral corticosteroids suggests that rodents are more prone to teratogenic effects from corticosteroid exposure than humans. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryofetal development study with pregnant mice dosed throughout the period of organogenesis, mometasone furoate produced cleft palate at a dose less than the maximum recommended daily intranasal dose (MRDID) (on a mcg/m 2 basis with maternal subcutaneous doses of 60 mcg/kg and above) and decreased fetal survival at approximately 2 times the MRDID (on a mcg/m 2 basis with a maternal subcutaneous dose of 180 mcg/kg). No toxicity was observed with a dose that produced an exposure less than the MRDID (on a mcg/m 2 basis with maternal topical dermal doses of 20 mcg/kg and above). In an embryofetal development study with pregnant rats dosed throughout the period of organogenesis, mometasone furoate produced fetal umbilical hernia at exposures approximately 10 times the MRDID (on a mcg/m 2 basis with maternal topical dermal doses of 600 mcg/kg and above) and delays in fetal ossification at a dose approximately 6 times the MRDID (on a mcg/m 2 basis with maternal topical dermal doses of 300 mcg/kg and above). In another reproductive toxicity study, pregnant rats were dosed with mometasone furoate throughout pregnancy or late in gestation. Treated animals had prolonged and difficult labor, fewer live births, lower birth weight, and reduced early pup survival at a dose less than the MRDID (on a mcg/m 2 basis with a maternal subcutaneous dose of 15 mcg/kg). There were no findings at a dose less than the MRDID (on a mcg/m 2 basis with a maternal subcutaneous dose of 7.5 mcg/kg). Embryofetal development studies were conducted with pregnant rabbits dosed with mometasone furoate by either the topical dermal route or oral route throughout the period of organogenesis.

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. This is part of the section. Read the full label on DailyMed →

Mometasone furoate (mometasone) and breastfeeding

Quoted from the nursing mothers / lactation part of the FDA-approved label.

Risk Summary There are no available data on the presence of mometasone furoate nasal spray in human milk, the effects on the breastfed child, or the effects on milk production. However, mometasone is minimally absorbed systemically by the mother following nasal use, and breastfeeding is not expected to result in exposure of the infant to mometasone.

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The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for mometasone furoate nasal spray and any potential adverse effects on the breastfed infant from mometasone furoate nasal spray or from the underlying maternal condition.

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

When Mometasone furoate (mometasone) should not be used

Quoted from the “Contraindications” section of the FDA-approved label.

Mometasone furoate nasal spray is contraindicated in patients with known hypersensitivity to mometasone furoate or any of its ingredients [see Warnings and Precautions (5.3), Description (11)]. Patients with known hypersensitivity to mometasone furoate or any of the ingredients of mometasone furoate nasal spray. (4)

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

Mometasone furoate (mometasone) overdose

Quoted from the “Overdosage” section of the FDA-approved label. If someone may have taken too much, call Poison Help at 1-800-222-1222 (or 911 in an emergency).

There are no data available on the effects of acute or chronic overdosage with mometasone furoate nasal spray. Because of low systemic bioavailability, and an absence of acute drug-related systemic findings in clinical studies, overdose is unlikely to require any therapy other than observation. Chronic overdosage with any corticosteroid may result in signs or symptoms of hypercorticism. [see Warnings and Precautions (5.5)].

— FDA label: Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025. Read the full label on DailyMed →

Forms and how it is given

Companies that list this medicine

Labelers in the FDA NDC Directory: the company named on the package (maker or distributor), with the number of prescription products.

• Golden State Medical Supply, Inc.1 product
• Apotex Corp.1 product

FDA approval history

• ANDA: Abbreviated New Drug Application: how a generic version is approved.

Generic approvals (1)

• ANDA091161Apotex · March 22, 2016

Shortage status

The FDA drug shortage list does not show these products.

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Recalls

No recall linked to these products (by their NDC code) appears in the FDA enforcement reports.

Official identifiers

Next steps

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Sources

1. FDA-approved label on DailyMed (National Library of Medicine) — Mometasone Furoate, Golden State Medical Supply, Inc., effective July 10, 2025; via openFDA, FDA data exported October 30, 2026, retrieved October 31, 2026
2. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
3. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
5. Drug shortages (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026

openFDA data is provided by the FDA as is; it may be incomplete. Always rely on the label that comes with your medicine. FDA Enforcement Report search →

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