Purdue Pharma taps a Gilded Age history of pharmaceutical fraud Classified advertisement for Leslie Keeley’s Gold Cure. ProQuest Historical Newspapers: Chicago Tribune, July 21, 1884 Jonathan S. Jones, Binghamton University, State University of New York Newly unsealed documents from a lawsuit by the state of Massachusetts allege that Purdue Pharma, maker of OxyContin and other addictive opioids, actively sniffed out new, sinister ways to cash in on the opioid crisis.