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Asmanex hfa

Generic Name: mometasone inhalation (moe MET a sone)
Brand Names: Asmanex Twisthaler, Asmanex HFA
Asmanex Twisthaler (mometasone) is used to prevent or reduce the frequency and seriousness of asthma attacks. Includes Asmanex side effects, interactions and indications.
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Drug Information:
Asmanex contains mometasone furoate, a corticosteroid medicine. Mometasone furoate prevents the release of substances in the body that cause inflammation. Asmanex is used to prevent asthma attacks. Asmanex will not treat an asthma attack that has already begun. Do not use Asmanex as a rescue medicine for asthma attacks. It will not work fast enough. Use only fast-acting inhalation medicine for an attack. Seek medical attention if your breathing problems get worse quickly, or if you think your asthma medications are not working as well. An increased need for medication could be an early sign of a serious asthma attack. Learn more

Asmanex hfa Side Effects

Asmanex Twisthaler Side Effects

Note: This document contains side effect information about mometasone. Some of the dosage forms listed on this page may not apply to the brand name Asmanex Twisthaler.

For the Consumer

Applies to mometasone: implantation implant

Other dosage forms:

  • inhalation aerosol powder, inhalation powder

Along with its needed effects, mometasone (the active ingredient contained in Asmanex Twisthaler) 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

  • Body aches or pain
  • chills
  • cough
  • ear congestion
  • fever
  • headache
  • loss of voice
  • nasal congestion
  • pain or tenderness around the eyes and cheekbones
  • runny nose
  • sneezing
  • sore throat
  • stuffy or runny nose
  • tightness of the chest
  • troubled breathing
  • unusual tiredness or weakness

Less common

  • Blurred vision
  • cough producing mucus
  • earache
  • fast heartbeat
  • feeling faint
  • hives, itching, skin rash
  • hoarseness
  • irritation
  • joint pain, stiffness, or swelling
  • lightheadedness
  • muscle weakness
  • noisy breathing
  • nosebleeds
  • redness of the skin
  • redness or swelling in the ear
  • swelling of the eyelids, face, lips, hands, or feet
  • troubled swallowing

For Healthcare Professionals

Applies to mometasone: inhalation aerosol, inhalation aerosol powder


Very common (10% or more): Oral candidiasis

Uncommon (0.1% to 1%): Dry mouth and throat, dyspepsia

In clinical trials, gastroenteritis and vomiting occurred with an incidence of at least 1% but less than 3%.

Nervous system

Very common (10% or more): Headache


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


Common (1% to 10%): Dysmenorrhea, urinary tract infection (in pediatrics)


Common (1% to 10%): Musculoskeletal pain, back pain, myalgia


Common (1% to 10%): Fatigue, flu-like symptoms, pain, earache, infection, fever and bruise (in pediatrics)

In clinical trials, fatigue, flu-like symptoms, pain, earache, and infection occurred with an incidence of at least 1% but less than 3%.


Uncommon (0.1% to 1%): Palpitations


Uncommon (0.1% to 1%): Weight increase


Rare (less than 0.1%): Glaucoma, cataracts

Postmarketing reports: Vision blurred


Frequency not reported: Psychomotor hyperactivity, sleep disorders, anxiety, depression or aggression


Postmarketing reports: Immediate and delayed hypersensitivity reactions including rash, pruritus, angioedema and anaphylactic reaction

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Asmanex Hfa