Ticagrelor is a medication used to prevent blood clots in patients with certain heart conditions, such as acute coronary syndrome. It works by inhibiting platelets, which are small cells in the blood that help form clots. By reducing platelet activation, Ticagrelor helps lower the risk of heart attacks and strokes. This drug is typically prescribed alongside aspirin for enhanced effectiveness. It is taken orally, and patients are usually advised to follow their doctor's instructions regarding dosage and duration of treatment. Common side effects may include bleeding, shortness of breath, and headache.