A platelet aggregation inhibitor is a type of medication that prevents blood cells called platelets from clumping together. This clumping is a crucial step in the formation of blood clots, which can lead to conditions like heart attacks and strokes. By inhibiting this process, these medications help maintain smooth blood flow and reduce the risk of cardiovascular events. Common examples of platelet aggregation inhibitors include aspirin and clopidogrel. These drugs are often prescribed to individuals with a history of heart disease or those at high risk for clot-related issues. Regular use can significantly improve heart health and overall circulation.