Omacor Capsules 1000mg The active components of Omacor Capsules consist of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) ethyl esters. Omega-3 polyunsaturated fatty acids exist under the names of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) ethyl esters. The heart-protective effects of Omacor have been demonstrated after heart attacks while the medication also reduces triglyceride levels in blood. What is Omacor Capsules Used for? The medication serves as part of multiple treatments to protect patients who have experienced heart attacks from additional heart attacks while enhancing their survival rates. The medication serves to treat triglyceride elevation in specific patient blood samples after dietary modifications prove ineffective.