Thrombolysis is a medical treatment used to dissolve blood clots that are blocking blood flow in the body. This treatment is commonly used in cases of heart attacks, strokes, and other conditions where blood clot formation is a concern. Thrombolytic drugs are administered intravenously to help break down the clot and restore blood flow to the affected area. Thrombolysis is a time-sensitive treatment and is most effective when administered early after the onset of symptoms.