Thrombolytic agents are medications used to dissolve blood clots that can block blood vessels, leading to conditions like heart attacks or strokes. These drugs work by breaking down fibrin, a protein that helps form clots, thereby restoring blood flow to affected areas. Common thrombolytic agents include alteplase, tenecteplase, and reteplase. They are typically administered in emergency settings and can significantly improve outcomes if given promptly. However, their use carries risks, such as bleeding complications, so careful patient selection and monitoring are essential during treatment.