Dulera (generic: mometasone/formoterol) is a prescription medication used as a maintenance treatment for asthma in people over 12 years old.  It is not intended for use after an asthma attack has started.

This medication contains two drugs.  Mometasone belongs to a group of drugs called corticosteroids, which decrease inflammation in the lungs.  Formoterol belongs to a group of drugs called long-acting beta agonists (LABA), which relax and open airways in the lungs.

This medication comes in an inhaler. The usual dose is 2 inhalations twice each day.

Common side effects of Dulera include inflammation of the nose, throat, and sinuses and headaches.