Using Mometasone Furoate for Your Asthma

Young woman using inhaler
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Mometasone furoate is an inhaled steroid that is prescribed as a controller medication for your asthma. It is marketed under the brand names Asmanex HFA, Asmanex, and Asmanex Twisthaler.

An inhaled steroid is prescribed once you need more than a rescue inhaler. This generally means you meet some component of poor asthma control such as needing your rescue medication more than twice per week or waking up at night due to your asthma symptoms more than twice per month.

Mometasone furoate can be prescribed alone or combined with the LABA or long-acting beta agonist formoterol in order to prevent asthma symptoms such as:

How Does Mometasone Furoate Improve Asthma?

Mometasone furoate decreases inflammation in the airways of your lung. The drug also decreases hyperresponsiveness after exposure to allergic and environmental triggers.

Mometasone furoate targets several different types of cells in the pathophysiology of asthma that lead to asthma symptoms including:

  • Basophils
  • Eosinophils
  • Lymphocytes
  • Macrophages
  • Mast Cells
  • Neutrophils
  • Monoclonal Antibodies
  • IgE

Unlike rescue inhalers, mometasone furoate is taken daily, no matter how good you feel, as part of your regularly reviewed asthma action plan.

How Does My Doctor Prescribe Mometasone Furoate?

Mometasone furoate is prescribed as an HFA metered dose inhaler or a dry powdered inhaler. You will use the inhaler once or twice daily depending on your dose, and you must use it as directed to help achieve good asthma control.

When your symptoms are well controlled you and your doctor may be able to step down therapy by decreasing the:

  • Total daily dose
  • Number of times per day you need the medication

Mometasone furoate is the active component in the combination inhaler Dulera. It is also used in the following products:

  • Elocon- A topical steroid for the treatment of conditions like atopic dermatitis.
  • Nasonex- commercial name for mometasone furoate in a nasal formulation used in the treatment of hay fever and allergic rhinitis

Possible Risks & Side Effects of Mometasone Furoate

Like most other inhaled steroids, mometasone furoate is generally well tolerated. However, all medications carry some risk of side effects that you need to be aware of. Most risks of inhaled steroids are preventable. Minor side effects that commonly occur include:

  • Oral thrush
  • Voice changes
  • Cough

Oral candidiasis can be prevented by using a spacer or rinsing your mouth out after each use. Spacer use may also help prevent a voice change associated with inhaled steroids called dysphonia. In addition to decreasing the risk of side effects, spacer use also increases the amount of drug that makes it to your lungs– thus increasing its effectiveness.

Regular trips to your doctor are needed for children when treated with mometasone furoate to make sure adequate linear growth is maintained. Additionally, adults need to make sure to take adequate vitamin D to prevent bone problems.

Let your doctor know if you experience any of the following when taking mometasone furoate:

  • Abdominal pain
  • Chest pain
  • Dizziness
  • Hives
  • Tiredness
  • Weakness

What You Need to Know About Mometasone Furoate

Patients often fail to take their medications regularly for a number of different reasons. Mometasone furoate needs to be taken as prescribed to be effective.

Know When to Call Your Doctor

Call your doctor about your asthma if:

  • Your asthma symptoms worsen while on mometasone furoate
  • Your rescue inhaler no longer relieves your symptoms
  • You are using your rescue inhaler more than twice per week
  • Your peak flows are worsening
  • You use your entire rescue inhaler at least every 2 months, or more frequently
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