As of 2015, brands of omega-3 ethyl esters often recommended and purchased include Lovaza and Omtryg, according to Mayo Clinic. These prescription medications are available as a liquid-filled capsule.
Omega-3 ethyl esters, when combined with a healthy diet and exercise regimen, help lower triglyceride levels and increase HDL cholesterol levels in the body, states WebMD. Physicians typically recommend a specific daily dosage based on a patient's medical history and existing health issues, reports Mayo Clinic.
Patients should take omega-3 ethyl esters with food at the same time each day, claims WebMD. Potential side effects include dizziness, hives, headache and irregular heartbeat, explains Mayo Clinic. Patients need to seek medical attention if the side effects continue or become worse.