Generic Dulera

Common use

Dulera (mometasone furoate and formoterol) is prescribed for the maintenance treatment of asthma in adults and children aged 12 years and older. Mometasone is a corticosteroid that decreases airway inflammation, while formoterol is a long-acting bronchodilator (LABA) that relaxes the muscles around the airways, improving airflow and reducing symptoms.

Dosage and direction

Dulera is administered via a metered-dose inhaler, usually twice daily, morning and evening, with or without food. Shake the inhaler well before use and follow the inhalation instructions carefully. Do not use it to relieve sudden asthma attacks — use a rescue inhaler instead.

Precautions

Inform your doctor if you have a history of heart disease, high blood pressure, diabetes, tuberculosis, or fungal infections. Monitor for signs of worsening asthma, changes in heart rate, or oral thrush. Rinse your mouth after each use to reduce the risk of oral infections.

Contraindications

Do not use Dulera if allergic to mometasone, formoterol, or any component of the inhaler. It is contraindicated for the treatment of acute asthma attacks or status asthmaticus.

Possible side effect

Common side effects include headache, throat irritation, hoarseness, cough, or mild oral thrush. Serious side effects may include paradoxical bronchospasm, allergic reactions, heart rhythm changes, or worsening asthma symptoms. Seek medical attention if severe symptoms occur.

Drug interaction

Dulera may interact with other corticosteroids, beta-agonists, antifungal medications, or drugs affecting heart rhythm. Inform your doctor about all prescription medications, over-the-counter products, and supplements you are taking.

Missed dose

If a dose is missed, take it as soon as you remember, but do not double the dose. Continue with the regular schedule.

Overdose

Overdose may lead to excessive corticosteroid effects, heart rhythm changes, or increased blood pressure. Seek immediate medical attention if an overdose is suspected.

Storage

Store Dulera inhaler at room temperature, away from heat, moisture, and direct sunlight. Keep the inhaler capped and out of reach of children.

Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Clinical Verification

Last Clinically Updated: August 15, 2026

Written By

Dr. Elena Vance, PharmD

Clinical Specialist in Neuropharmacology

Fact Checked By

Marcus Thorne, MS

Biomedical Data & FDA Label Verification

Medically Reviewed By

Dr. Arthur Campbell, MD

Board-Certified Psychiatrist (ABPN)