Formoterol is primarily used as a bronchodilator in the management of respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). It works by relaxing the muscles in the airways, making it easier to breathe. This medication is often prescribed for long-term control of symptoms and is typically administered via inhalation to ensure direct delivery to the lungs. Formoterol is frequently combined with inhaled corticosteroids to enhance its effectiveness in reducing inflammation and preventing asthma attacks. It is also utilized as a maintenance treatment to prevent bronchospasm in individuals with reversible obstructive airway disease. Additionally, formoterol may be prescribed for exercise-induced bronchoconstriction, helping to prevent breathing difficulties during physical activity. Its rapid onset of action makes it suitable for both regular use and as-needed relief in certain cases.