What is the primary action of thrombolytic agents?

Thrombolytic agents are specifically designed to dissolve blood clots, which is their primary action. These medications work by breaking down fibrin, a key protein involved in the clotting process, thereby leading to the dissolution of the clot that may be obstructing blood flow. This action is particularly crucial in acute situations, such as myocardial infarction (heart attack) or ischemic stroke, where the timely restoration of blood flow can significantly improve outcomes and reduce complications.

The efficacy of thrombolytic agents is essential for dissolving existing clots rather than preventing their formation or altering blood pressure and viscosity. Therefore, their primary role is therapeutic intervention after a clot has formed, targeting the underlying issue of clot obstruction in the circulatory system.