Reported Reactions

Drugs › Corticosteroid

Brand name · Mometasone furoate

Asmanex: adverse event reports filed with FDA

4,808 reports list it as a suspect or interacting product, 2005–2026. Class: Corticosteroid.

4,808
reports as suspect product
0% of all reports · about 233 a year
8
reports, 12 months to June 2026
20 in the 12 months before
7.1%
marked serious by the reporter
77.7% across the class
0.2%
record death among outcomes, as reported
12 reports · not verified by FDA

4,808 adverse event reports received by FDA list the brand name Asmanex (mometasone furoate) as a suspect or interacting product, from November 2005 to June 2026. A further 2,732 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 8 reports listed it, down 60% from 20 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 233 reports a year and 0% of the 20,646,523 reports in the database, and 0.6% of the reports for the corticosteroid class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded no adverse event (60.1%), product quality issue (56.2%) and poor quality device used (39.9%). A report can list several reactions, so shares add to more than 100%; 272 different terms appear across these reports. No adverse event is recorded in 60.1% of these reports, a larger share than in the median corticosteroid drug (0.4%).

7.1% of the reports are marked serious by the reporter (77.7% across the class); 0.2% record death among the outcomes and 2.2% record hospitalisation, as reported. 37% of the reports came from consumers, and the largest patient age group is 45 to 64 (11.8%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

03264Jul 2021: 56Aug 2021: 43Sep 2021: 53Oct 2021: 52Nov 2021: 64Dec 2021: 422022Jan 2022: 56Feb 2022: 47Mar 2022: 48Apr 2022: 33May 2022: 38Jun 2022: 48Jul 2022: 47Aug 2022: 47Sep 2022: 29Oct 2022: 40Nov 2022: 44Dec 2022: 212023Jan 2023: 6Feb 2023: 6Mar 2023: 4Apr 2023: 1May 2023: 4Jun 2023: 4Jul 2023: 2Aug 2023: 1Sep 2023: 1Oct 2023: 4Nov 2023: 1Dec 2023: 12024Jan 2024: 2Feb 2024: 2Mar 2024: 3Apr 2024: 5May 2024: 1Jun 2024: 3Jul 2024: 1Aug 2024: 3Sep 2024: 3Oct 2024: 3Nov 2024: 3Dec 2024: 02025Jan 2025: 0Feb 2025: 2Mar 2025: 1Apr 2025: 1May 2025: 1Jun 2025: 2Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 12026Jan 2026: 1Feb 2026: 0Mar 2026: 0Apr 2026: 1May 2026: 3Jun 2026: 2

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

03727432005: 220052006: 22007: 120072011: 12012: 620122013: 152014: 34120142015: 5772016: 42520162017: 4852018: 67520182019: 7432020: 46120202021: 4972022: 49820222023: 352024: 2920242025: 82026: 72026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Asmanex reports recording the termmedian drug in corticosteroid

  1. No adverse eventno adverse event was reported60.1%2,890
  2. Product quality issuea problem with the product itself56.2%2,701
  3. Drug dose omissiona dose was missed30.1%1,447
  4. Device malfunctionthe device did not work properly23.1%1,109
  5. Circumstance or information capable of leading to medication errora situation that could lead to a medication error10.7%513
  6. Product dose omissiona dose was missed9.1%437
  7. Dyspnoeashortness of breath8.9%426
  8. Product dose omission issuea dose was missed8.1%390
  9. Product container issuea problem with the container7.2%346
  10. Incorrect dose administeredthe wrong dose was given6.4%309
  11. Coughcough6.4%308
  12. Asthmaasthma4%192
  13. Drug ineffectivethe medicine did not work as expected3.1%150
  14. Wheezingwheezing2.6%124
  15. Product use issuea problem in how the product was used2.3%109
  16. Device difficult to usethe device was hard to use2.2%105
  17. Product use in unapproved indicationused for a purpose not on the label2%98
  18. Chest discomfortchest discomfort2%96
  19. Malaisegeneral feeling of being unwell1.5%71
  20. Productive cougha cough with phlegm1.3%61
  21. Product availability issuethe product was not available1.2%59
  22. Wrong technique in product usage processthe product was used in the wrong way1.2%58
  23. Adverse eventan unwanted medical event, type not specified1%50
  24. Product taste abnormalthe product tasted odd1%48
  25. Headachehead pain0.9%42
  26. Pneumonialung infection0.9%41

Top 30 of 272 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the median share across the 74 drugs in the corticosteroid class; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death0.2%12
Life-threatening0.2%9
Hospitalisation (initial or prolonged)2.2%105
Disability0.5%22
Congenital anomaly0%0
Other serious5.8%281
Not serious92.9%4,467

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 808,789 reports in the class. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20%0
2 to 112.2%108
12 to 171.2%57
18 to 443.3%157
45 to 6411.8%568
65 to 748.7%420
75 and over7.1%343
Age not given65.6%3,155

Patient sex

Female52.6%2,527
Male26.7%1,282
Not given20.8%999

Who reported

Physician29.4%1,415
Pharmacist27.6%1,326
Other health professional5.2%252
Lawyer0%1
Consumer or non-health professional37%1,778
Not given0.7%36

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 97.8% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Asthma93319.4%
Chronic obstructive pulmonary disease841.7%
Dyspnoea260.5%
Cough200.4%
Respiratory disorder150.3%
Hypersensitivity140.3%

The indication field is filled in by the reporter and is often blank; shares are of all 4,808 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Asmanex reports
Singulair1342.8%
Albuterol sulfate1162.4%
Prednisone982%
Albuterol921.9%
Tiotropium bromide771.6%
Proair Hfa671.4%
Aspirin621.3%
Proventil450.9%
Zyrtec430.9%
Asmanex Hfa390.8%

Other products listed in reports where Asmanex is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureAsmanexCorticosteroidAll reports
Reports as suspect product4,808808,78920,646,523
Share of that pool—0.6%0%
Reports, latest 12 months8—1,332,454
Marked serious7.1%77.7%57.4%
Death recorded among outcomes, per 1,000 reports214691
Hospitalisation recorded, per 1,000 reports22336213
Consumer-filed share37%29.1%45.8%
Top term, share of reportsNo adverse event 60.1%median 0.4%0.8%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Other drugs in the corticosteroid class

DrugName typeReportsLatest 12 monthsMarked serious
Prednisonegeneric183,86715,61491.4%
Dexamethasonegeneric129,6779,21695.1%
Prednisolonegeneric87,8066,62497.6%
Methylprednisolonegeneric49,5374,43095.2%
Symbicortbrand39,1191,17750.6%
Breo Elliptabrand22,22062831.7%
Hydrocortisonegeneric21,2632,38689.5%
Advair Diskusbrand20,51812029%
Advair Hfabrand19,62258954.9%
Budesonidegeneric14,7141,08382.2%
Desoximetasonegeneric12,2091,52599.2%
Floventbrand10,77217142.1%
Methylprednisolone sodium succinategeneric10,7721,63097.8%
Solu-medrolgeneric10,28843288.8%
Ciprobrand9,79110857.3%

Ordered by report count for navigation only. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic." A brand and its generic are separate rows because reporters name them separately.

Questions about Asmanex reports

How many adverse event reports has FDA received for Asmanex?

4,808 reports list Asmanex as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 8 of them arrived in the latest 12 months. Another 2,732 list it only as a concomitant medication.

What reactions are recorded in Asmanex reports?

no adverse event (60.1%), product quality issue (56.2%), poor quality device used (39.9%), drug dose omission (30.1%) and device malfunction (23.1%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Asmanex was responsible.

How serious are the reports?

7.1% are marked serious by the reporter. Among the outcomes recorded, 0.2% of reports include death and 2.2% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

consumer or non-health professional (37%), physician (29.4%) and pharmacist (27.6%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Asmanex rising?

8 reports in the 12 months to June 2026, down 60% from 20 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Asmanex was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Asmanex?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Asmanex as a suspect or interacting product; reports listing it only as a concomitant medication (2,732) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.