When OxyContin hit pharmacies 20 years ago, its primary selling point was that a single dose of the opioid pain medication lasted 12 hours, “providing smooth and sustained pain control all day and all night,” per the press release. But a new report claims Purdue Pharma, the makers of OxyContin, have long known that the drug doesn’t always live up to this promise, resulting in an increased likelihood for abuse and addiction. [More]