Iditarod Dogs Test Positive For Opioid Pain Reliever October 19, 2017 admin The Iditarod announced that several dogs in this year’s race were found to have tested positive for an opioid pain reliever. Let’s block ads! (Why?) Source:: http://www.npr.org/2017/10/19/558847435/iditarod-dogs-test-positive-for-opioid-pain-reliever?utm_medium=RSS&utm_campaign=sports