List of products in the National Drug Code with proprietary name . Icosapent ethyl is used along with certain other cholesterol medications ("statins" such as atorvastatin, simvastatin) to reduce the risk of heart attack, stroke, and certain types of heart problems that require treatment in a hospital. It is also used along with a proper diet to help lower fats (triglycerides) in the blood. Icosapent ethyl is a type of omega-3 fatty acid, a fat found in fish oil. It is thought to work by decreasing the amount of triglycerides made by the body. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details.