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Mometasone Side Effects

The most commonly reported side effects of mometasone include product quality issue, no adverse event, and dyspnoea, based on 68,718 FDA adverse event reports from 2004 to 2025. 6.3% of reports found the drug to be ineffective.

Mometasone side effects

Percentages show how often each reaction appears relative to total reports for mometasone.

1
Product Quality Issue12.1%8,307
2
No Adverse Event11.4%7,810
3
Dyspnoea8.8%6,020
4
Drug Dose Omission8.5%5,807
5
Drug Ineffective6.3%4,355
6
Asthma5.9%4,060
7
Cough5.6%3,856
8
Headache5.1%3,494
9
Fatigue4.9%3,350
10
Poor Quality Device Used4.7%3,259
11
Nausea4.0%2,716
12
Wheezing3.8%2,577
13
Pneumonia3.6%2,450
14
Off Label Use3.4%2,369
15
Pain3.4%2,313

These are voluntary reports and do not establish that mometasone caused these reactions.

Report severity

52.1%Serious35,808 reports
23.0%Hospitalizations15,777 reports
3.5%Fatal2,405 reports

Seriousness is determined by the reporter, not by OpenClaim.

Mometasone drug interactions

Other drugs that appear in adverse event reports alongside mometasone. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Formoterol12.4%8,497
2
Dupilumab4.4%3,052
3
Albuterol4.4%2,991
4
Omalizumab3.8%2,588
5
Sodium-oxybate3.7%2,513
6
Prednisone3.5%2,432
7
Fluticasone3.3%2,273
8
Tiotropium-bromide2.9%2,024
9
Montelukast-sodium2.9%2,013
10
Budesonide2.7%1,825
11
Adalimumab2.1%1,423
12
Omeprazole2.0%1,399
13
Mepolizumab2.0%1,379
14
Esomeprazole2.0%1,352
15
Salmeterol-xinafoate1.9%1,278

Taken alongside

1
Albuterol25.8%17,754
2
Formoterol16.6%11,398
3
Acetaminophen15.2%10,412
4
Montelukast-sodium14.8%10,151
5
Fluticasone14.0%9,587
6
Ergocalciferol12.6%8,685
7
Omeprazole10.8%7,401
8
Aspirin10.7%7,366
9
Levothyroxine-sodium10.0%6,900
10
Prednisone9.6%6,598
11
Cetirizine-hydrochloride8.8%6,055
12
Atorvastatin-calcium7.7%5,257
13
Furosemide7.5%5,136
14
Gabapentin6.9%4,769
15
Budesonide6.7%4,583

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports mometasone side effects

58.6% of mometasone adverse event reports involve female patients and 30.6% involve male patients. The largest age group is adult at 56%. These figures reflect who reports side effects, not underlying risk.

Sex

Female58.6%
Male30.6%
Unknown10.8%

Age group

< 20.5%
2–114.6%
12–173.5%
18–6456.1%
65+35.3%

What is mometasone used for

Conditions and purposes for which patients were taking mometasone when the adverse event was reported.

AcariasisAccidental ExposureAccidental Exposure To ProductAcneAcute Febrile Neutrophilic DermatosisAcute Lung InjuryAcute Respiratory Distress SyndromeAcute SinusitisAdenoidal DisorderAdenoidal HypertrophyAdenoiditisAdverse EventAllergic BronchitisAllergic CoughAllergic Granulomatous Angiitis

Showing 15 of 903 indications

Mometasone brand names and reporting trend

Mometasone is sold under the brand name Asmanex Twisthaler.

Brand names

Asmanex Twisthaler22,648

Quarterly reports (20042025)

20052010201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking mometasone with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.