Omega-3 acid ethyl esters are the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) found in fish oil.[1] Together with dietary changes, they are used to treat high blood triglycerides which may reduce the risk of pancreatitis.[1][2] They are generally less preferred than statins and use is not recommended by NHS Scotland as the evidence does not support a decreased risk of heart disease.[1][3][4] Omega-3 acid ethyl esters are taken by mouth.[1]