Vienna/New York/ Geneva, 22 June 2017 – In 2015 about a quarter of a billion people used drugs. Of these, around 29.5 million people – or 0.6 per cent of the global adult population – were engaged in problematic use and suffered from drug use disorders, including dependence. Opioids were the most harmful drug type … More World Drug Report 2017: 29.5 million people globally suffer from drug use disorders, opioids the most harmful