Dulera is a prescription inhalation medication used to manage asthma in adult patients. It combines the corticosteroid mometasone with the long-acting beta-agonist formoterol to provide both anti-inflammatory and bronchodilatory effects. Mometasone works by reducing inflammation in the airways, which helps to prevent the onset of asthma symptoms. Formoterol relaxes the smooth muscle of the bronchial tubes, allowing more air to flow in and out of the lungs. Together these components improve lung function, decrease the frequency of wheezing, and lower the risk of severe asthma attacks. The medication is delivered through a dry-powder inhaler that releases the drug directly into the respiratory tract upon inhalation. By targeting both inflammation and airway constriction, Dulera helps maintain a more stable respiratory environment for patients. The therapeutic effect results from the synergistic action of mometasone's anti-inflammatory potency and formoterol's rapid and sustained bronchodilation.

Dulera is a combination inhaler that contains the corticosteroid mometasone and the long-acting beta-2 agonist formoterol. It is formulated for the treatment of asthma and chronic obstructive pulmonary disease in patients who require both anti-inflammatory and bronchodilator therapy. The drug works by delivering mometasone to reduce airway inflammation and formoterol to relax bronchial smooth muscle. Mometasone binds to glucocorticoid receptors inside airway cells to suppress the production of inflammatory cytokines. Formoterol stimulates beta-2 adrenergic receptors on airway muscle cells causing a cascade that leads to relaxation and improved airflow. Together the two agents provide coordinated control of airway inflammation and bronchoconstriction to improve lung function. The inhaled route allows rapid delivery directly to the lungs where the pharmacological effects are needed. This dual mechanism addresses both the underlying inflammation and the reversible airway narrowing characteristic of chronic respiratory conditions.

Dulera may cause headache and throat irritation as common side effects. Some users report nasal congestion and coughing. Mild stomach discomfort can occur occasionally. A small number of people experience dizziness or fatigue. Rarely users notice muscle aches or joint stiffness. Most of these reactions are mild and often improve with continued use.

Some people report a sore throat after using Dulera. Nasal congestion or a runny nose can occur. Coughing may be triggered initially. Nausea or mild stomach upset is possible. Dizziness or light-headedness may be experienced. Fatigue or a feeling of weakness can appear. Mild skin rash or irritation sometimes develops. Rarely a change in voice or hoarseness may be noted.