17 Dec 2018 --- The European Medicines Agency (EMA) has concluded that medicines containing omega 3 fatty acids are not effective in preventing further heart and blood vessel problems in patients who have had a heart attack. As a result of this finding, omega 3 fatty acid medicines will no longer be authorized for such use. These types of medicines had been authorized for use after a heart attack at a dose of 1g per day, in combination with other medicines, in several EU countries since 2000.