Mometasone Side Effects
Medically reviewed by Drugs.com. Last updated on Apr 15, 2025.
Applies to mometasone: implantation implant.
Other dosage forms:
Precautions
It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects.
This medicine may cause other nasal problems. Check with your doctor right away if you have bleeding, holes, infection, or irritation inside the nose.
Check with your doctor right away if blurred vision, difficulty in reading, or any other change in vision occurs during treatment with this medicine. Your doctor may want your eyes be checked by an ophthalmologist (eye doctor).
This medicine may cause serious allergic reactions, including angioedema, which can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, trouble breathing or swallowing, or any swelling of your hands, face, or mouth while you are using this medicine.
You may get infections more easily while using this medicine. Tell your doctor right away if you have been exposed to someone with chickenpox or measles. Also tell your doctor if you develop white patches or sores in your nose while you are using this medicine.
Using too much of this medicine or using it for a long time may increase your risk of having adrenal gland problems. Talk to your doctor right away if you have darkening of the skin, diarrhea, dizziness, fainting, loss of appetite, mental depression, nausea, skin rash, unusual tiredness or weakness, or vomiting.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Serious side effects of mometasone
Along with its needed effects, mometasone may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking mometasone:
More common side effects
- chest tightness
- chills
- cough producing mucus
- earache
- ear congestion
- feeling faint
- fever
- headache
- lightheadedness
- loss of voice
- noisy breathing
- nosebleeds
- pain or tenderness around the eyes and cheekbones
- redness or swelling in the ear
- sneezing
- sore throat
- stuffy or runny nose
- trouble breathing
Less common side effects
- blurred vision
- body aches or pain
- fast heartbeat
- hives, itching, skin rash
- hoarseness
- irritation
- joint pain, stiffness, or swelling
- muscle weakness
- redness of the skin
- swelling of the eyelids, face, lips, hands, or feet
- trouble swallowing
- unusual tiredness or weakness
Incidence not known
- burning, redness, swelling, or irritation around or inside your nose
- darkening of the skin
- diarrhea
- dizziness
- eye pain
- loss of appetite
- mental depression
- nausea or vomiting
- sores or white patches inside the nose or mouth
For healthcare professionals
Applies to mometasone: inhalation aerosol, inhalation aerosol powder.
Gastrointestinal adverse events
- Very common (10% or more): Oral candidiasis
- Uncommon (0.1% to 1%): Dry mouth and throat, dyspepsia[Ref]
In clinical trials, gastroenteritis and vomiting occurred with an incidence of at least 1% but less than 3%.[Ref]
Nervous system
- Very common (10% or more): Headache[Ref]
Respiratory
- Very common (10% or more): Nasopharyngitis, allergic rhinitis, upper respiratory infection
- Common (1% to 10%): Sinusitis, bronchitis, pharyngitis, dysphonia, epistaxis, nasal irritation, respiratory disorder
- Postmarketing reports: Asthma aggravation, which may include cough, dyspnea, wheezing and bronchospasm[Ref]
Genitourinary
- Common (1% to 10%): Dysmenorrhea, urinary tract infection (in pediatrics)[Ref]
Musculoskeletal
Other
- Common (1% to 10%): Fatigue, flu-like symptoms, pain, earache, infection, fever and bruise (in pediatrics)[Ref]
In clinical trials, fatigue, flu-like symptoms, pain, earache, and infection occurred with an incidence of at least 1% but less than 3%.[Ref]
Cardiovascular
- Uncommon (0.1% to 1%): Palpitations[Ref]
Metabolic
- Uncommon (0.1% to 1%): Weight increase[Ref]
Ocular
- Rare (less than 0.1%): Glaucoma, cataracts
- Postmarketing reports: Vision blurred[Ref]
Psychiatric
- Frequency not reported: Psychomotor hyperactivity, sleep disorders, anxiety, depression or aggression[Ref]
Hypersensitivity
- Postmarketing reports: Immediate and delayed hypersensitivity reactions including rash, pruritus, angioedema and anaphylactic reaction[Ref]
See also:
Xolair
Xolair injection (omalizumab) is used to reduce the risk of severe food allergy reactions ...
Symbicort
Symbicort (budesonide and formoterol) is used to prevent bronchospasm in people with asthma or ...
Dupixent
Dupixent is used to treat eczema, eosinophilic or oral-corticosteroid-dependent asthma, chronic ...
Ventolin
Ventolin is used for asthma, acute, asthma, maintenance, bronchiectasis, bronchospasm prophylaxis ...
Ventolin HFA
Ventolin HFA (albuterol) is used to treat or prevent breathing problems in patients who have asthma ...
Breo Ellipta
Breo Ellipta (fluticasone and vilanterol) is used to prevent airflow obstruction or bronchospasm in ...
Spiriva
Spiriva (tiotropium) is used to prevent bronchospasm in people with bronchitis, emphysema, or COPD ...
Xopenex
Xopenex is a short-acting bronchodilator used to treat or prevent bronchospasm in asthma and other ...
Dulera
Dulera Inhalers (formoterol and mometasone) are used to treat asthma. Includes Dulera side effects ...
Spiriva Respimat
Spiriva Respimat is used for asthma, maintenance, COPD, Maintenance
References
1. (2005) "Product Information. Asmanex Twisthaler (mometasone)." Schering-Plough Corporation
2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
3. (2014) "Product Information. Asmanex HFA (mometasone)." Merck & Co., Inc
4. US Food and Drug Administration (2018) Drug Safety Label Changes (SLC): Asmanex HFA. https://www.accessdata.fda.gov/scripts/cder/safetylabelingchanges/index.cfm?utm_campaign=SLC%203%2F30&utm_medium=email&utm_source=Eloqua&event=searchdetail.page&DrugNameID=329&elq
Frequently asked questions
More about mometasone
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- Drug class: inhaled corticosteroids
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Patient resources
- Mometasone inhalation drug information
- Mometasone (Implantation) (Advanced Reading)
- Mometasone Inhalation Powder
Other brands
Asmanex Twisthaler, Asmanex HFA
Professional resources
Other brands
Asmanex Twisthaler, Asmanex HFA
Related treatment guides
Further information
Mometasone side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.