About Heart Attack & Stroke PreventionPeople who have had a heart attack, stroke or stent, or who have high cardiovascular risk, often take medicines long-term to prevent another event. Blood clots in the legs (DVT) or lungs (pulmonary embolism) also need preventive treatment.Risk is increased by high blood pressure, diabetes, high cholesterol, smoking, atrial fibrillation and a family history of heart disease.Medicines used for Heart Attack & Stroke PreventionMedicines used include low-dose aspirin and clopidogrel to stop platelets clumping, statins such as atorvastatin and rosuvastatin, blood pressure medicines, and blood thinners such as rivaroxaban for atrial fibrillation or clots. Never stop these medicines without your doctor’s advice.When to see a doctorKnow the warning signs: call for emergency help for chest pain, sudden weakness or numbness of the face or limbs, difficulty speaking, or sudden breathlessness.This page is for general information only. Many of these medicines need a prescription; please use them only on the advice of a doctor or pharmacist, who can choose the right medicine and dose for you.