Baltimore Ravens offensive tackle Eugene Monroe aired his frustration with the NFL's drug policy, including the league's relationship to opioid substances, in a discussion on Twitter.
Monroe opened his discussion with this take on opioids:
To know that opioids are so addictive in nature frightens me to ever take them again
— Eugene Monroe (@MrEugeneMonroe) April 23, 2016
Backing up for just a moment, the NFL has a long history with opioids. John Barr of ESPN's Outside the Lines published a story in which researchers interviewed 644 former NFL players who retired between 1979 and 2006.