Clopidogrel is primarily used as an antiplatelet medication to prevent blood clots in patients with cardiovascular conditions. It is commonly prescribed to individuals who have experienced heart attacks, strokes, or peripheral artery disease. The drug works by inhibiting platelet aggregation, reducing the risk of clot formation in arteries. It is often used in combination with aspirin for enhanced effectiveness, particularly after procedures like coronary stent placement. Clopidogrel is also administered to patients with acute coronary syndrome to prevent further cardiovascular events. Its use is critical in managing conditions where blood flow is compromised due to arterial blockages.