Purdue Pharma, the company behind the prescription painkiller OxyContin, has filed for bankruptcy.
Prosecutors said Dr. Lawrence Choy prescribed large amounts of opioids and other drugs in potentially lethal combinations to 14 patients, resulting in three deaths.
A new report from the CDC says the powerful synthetic opioid is now the biggest killer.
It's a bold move to make prescription drug costs more transparent.
Macroeconomic pressures have hit the R&D returns of life sciences firms.