That may be because the greatest part of that $14 billion fortune tallied by Forbes came from OxyContin, the narcotic painkiller regarded by many public-health experts as among the most dangerous products ever sold on a mass scale. Since 1996, when the drug was brought to market by Purdue Pharma, the American branch of the Sacklers’ pharmaceutical empire, more than two hundred thousand people in the United States have died from overdoses of OxyContin and other prescription painkillers. Thousands more have died after starting on a prescription opioid and then switching to a drug with a cheaper street price, such as heroin. Not all of these deaths are related to OxyContin—dozens of other painkillers, including generics, have flooded the market in the past thirty years. Nevertheless, Purdue Pharma was the first to achieve a dominant share of the market for long-acting opioids, accounting for more than half of prescriptions by 2001.