Pills (IMAGE) Washington State University Caption New research questions the benefits of using opioid medicine to treat chronic pain. Credit <a target="_blank"href="publicdomainpictures.net">publicdomainpictures.net</a> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.