What is Dulera (mometasone and formoterol)?

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Last updated: April 10, 2025View editorial policy

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From the Guidelines

Dulera is a prescription medication used to treat asthma in patients 5 years and older, containing mometasone furoate and formoterol fumarate, which reduce inflammation and relax airways, respectively. According to the most recent guidelines 1, Dulera is recommended for long-term control of persistent asthma, but not for acute asthma attacks. The medication comes in two strengths: 100/5 mcg and 200/5 mcg, typically prescribed as two inhalations twice daily.

  • The mometasone in Dulera reduces inflammation in the airways, while formoterol helps relax and open the airways to improve breathing.
  • Dulera is not intended to be the first medication tried for asthma and should not be used without an asthma action plan from a healthcare provider.
  • Patients should rinse their mouth after each use to prevent thrush (a fungal infection).
  • Side effects may include throat irritation, headache, and increased risk of respiratory infections.
  • Dulera works by addressing both the inflammatory and bronchospasm components of asthma, providing comprehensive control of symptoms when used regularly as prescribed. The Expert Panel recommends ICS-formoterol in a single inhaler used as both daily controller and reliever therapy for individuals aged 4 years and older with moderate to severe persistent asthma 1.
  • This recommendation is based on high certainty of evidence for ages greater than 12 years and moderate certainty of evidence for ages 4-11 years.
  • The use of Dulera as a combination LABA/ICS is supported by the guidelines, which emphasize the importance of using LABAs only in combination with ICS therapy 1.

From the Research

Definition of Dulera

  • Dulera is a combination medication containing mometasone furoate and formoterol fumarate dihydrate, used for the daily maintenance therapy of persistent asthma in patients aged 12 years and older 2.
  • It is administered via a metered-dose inhaler with a dose counter.

Components of Dulera

  • Mometasone furoate is a synthetic steroid with a strong affinity for the glucocorticoid receptor, low bioavailability, and high plasma protein binding 3.
  • Formoterol fumarate is a full β2-agonist with a rapid onset and 12 hours of duration 3.

Uses and Benefits of Dulera

  • Dulera is used to reduce asthma deteriorations, improve lung function, and enhance quality-of-life in patients with persistent asthma 2, 4.
  • It has been shown to be effective in patients with asthma uncontrolled on medium- or high-dose inhaled corticosteroids 4.
  • Maintenance therapy with Dulera has been found to reduce the risk of asthma exacerbations compared to stepping down to mometasone monotherapy 5.

Safety Profile of Dulera

  • Dulera has been found to have a low incidence of local and systemic side effects in clinical safety studies lasting up to 1 year 2, 6.
  • The most common treatment-related adverse events associated with Dulera are headache and dysphonia 6.
  • Long-term treatment with Dulera has been found to be safe and well-tolerated in patients with persistent asthma 6, 4.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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