Ticagrelor is a medication used to prevent blood clots in patients with certain heart conditions, such as acute coronary syndrome or those who have had a heart attack. It works by inhibiting platelets, which are small cells in the blood that help form clots. By preventing these cells from sticking together, ticagrelor reduces the risk of serious cardiovascular events. This drug is typically prescribed alongside aspirin to enhance its effectiveness. It is taken orally, usually in tablet form, and may have side effects like bleeding or shortness of breath. Regular monitoring by a healthcare provider is essential while using ticagrelor.