Because they marketed an opioid as an "extended release" form when they knew from their own internal studies that the pain relief only lasted the standard 6 hou

Because they marketed an opioid as an "extended release" form when they knew from their own internal studies that the pain relief only lasted the standard 6 hours instead of the 8 hours that were claimed. As a result, people would find themselves taking more to stay on top of their symptoms and the resulting ramp in use would leave people debilitated.