 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  (such as heart attacks, strokes, blood clots in stents). It works by blocking platelets from sticking together and prevents them from forming harmful blood clots. This "anti-platelet" effect helps to keep blood flowing smoothly in your body. How to use Effient Read the Medication Guide and, if available, the Patient Information Leaflet provided by your pharmacist before you start taking prasugrel and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take this medication by mouth with or without food as directed by your doctor, usually once a day. Your doctor may direct you to take this medication with low-dose aspirin (usually 81-162 milligrams a day). Follow your doctor's instructions carefully. The manufacturer directs not to split the tablet before taking it. However, many similar drugs (immediate-release tablets) can be split. Follow your doctor's directions on how to take this medication. It is very important to take prasugrel exactly as directed. Do not increase your dose or take this medication more often than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. Also, do not stop using this medication unless directed by your doctor </s>