How do respiratory corticosteroids affect the bronchial passages?

Respiratory corticosteroids are primarily used for their anti-inflammatory properties, which play a crucial role in managing respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD). By effectively reducing inflammation within the bronchial passages, they lead to a decrease in bronchial resistance. This reduction in resistance allows for easier airflow and improved breathing, as the air passages become less swollen and constricted.

Unlike options that involve harmful effects or constriction, the therapeutic action of corticosteroids is beneficial in opening up the airways, which is essential for patients experiencing respiratory distress. Therefore, the action of reducing bronchial resistance through anti-inflammatory effects is central to the efficacy of corticosteroids in managing chronic respiratory conditions.