List of products in the National Drug Code with proprietary name . Ticagrelor is used along with low-dose aspirin to help prevent heart attack and stroke in people with heart problems (such as unstable angina, previous heart attack). It may also prevent blood clots after certain heart surgeries (such as stent placement). Ticagrelor works by blocking platelets from sticking together and prevents them from forming harmful clots. It is an antiplatelet drug. It keeps blood flowing smoothly in your body.