Which of the following is an example of a controller medication used for asthma?

Inhaled corticosteroids are recognized as a primary category of controller medications used for asthma management. These medications work by reducing inflammation and swelling in the airways, thereby decreasing the frequency and severity of asthma symptoms. They help in maintaining long-term control over asthma by utilizing their anti-inflammatory properties, which are crucial for managing the chronic nature of the disease.

Controller medications are intended for regular use to prevent asthma symptoms and to optimize lung function. Unlike rescue medications, which are designed for immediate relief during acute asthma attacks, inhaled corticosteroids need to be taken consistently to provide ongoing control over symptoms. Therefore, they are essential in an overall asthma management plan, particularly for patients experiencing persistent symptoms or those with moderate to severe asthma.