It's probably the most notorious prescription drug of our times – OxyContin.
Here in the US, because of widespread abuse and addiction, authorities are clamping down on it, and other opium-based painkillers. So the companies that make opioid drugs are looking overseas boost sales, and that's causing concern among medical officials.
The international push is coming from a group of companies, known as Mundipharma.
Los Angeles Times journalist Harriet Ryan spoke with A Martinez about her reporting.
READ: OxyContin goes global — “We’re only just getting started” in the L.A. Times