What is the mechanism of action of leukotriene receptor antagonists?

Leukotriene receptor antagonists function by blocking the action of leukotrienes, which are inflammatory mediators involved in the pathophysiology of asthma and allergic rhinitis. Leukotrienes are produced by the body in response to allergens or irritants and contribute to bronchoconstriction, mucus production, and inflammation in the airways.

By inhibiting the receptors that leukotrienes bind to, these antagonists help reduce bronchoconstriction, decrease inflammation, and alleviate symptoms related to respiratory conditions such as asthma. This allows for improved airway function and relief from symptoms, making them an important therapeutic option in managing chronic respiratory diseases.

In contrast, the other options describe processes that do not align with the pharmacological action of leukotriene receptor antagonists. Such distinctions clarify why blocking the action of leukotrienes is the appropriate mechanism for these medications.