13 DECEMBER 2017 - WHO has this week endorsed a recommendation from the Expert Committee on Drug Dependence (ECDD) to include carfentanil, an analogue of the prescription opioid fentanyl, into Schedules I and IV of the 1961 UN Single Convention on Narcotic Drugs. Schedule I substances are subject to strict drug control measures. Additional control under Schedule IV imposes the strongest possible regulations on substances by prohibiting production and supply of substances except under licence for specific purposes, such as medical treatment and research. In the case of carfentanil, there is no indication for human use
