USA. Statement from FDA Commissioner Scott Gottlieb, M.D. on FDA advisory about deadly risks associated with kratom

(...) Kratom is a plant that grows naturally in Thailand, Malaysia, Indonesia and Papua New Guinea. It has gained popularity in the U.S., with some marketers touting it as a “safe” treatment with broad healing properties. Proponents argue that it’s a safe substance largely because it’s a plant-based product. The FDA knows people are using kratom to treat conditions like pain, anxiety and depression, which are serious medical conditions that require proper diagnosis and oversight from a licensed health care provider. We also know that this substance is being actively marketed and distributed for these purposes. Importantly, evidence shows that kratom has similar effects to narcotics like opioids, and carries similar risks of abuse, addiction and in some cases, death. Thus, it’s not surprising that often kratom is taken recreationally by users for its euphoric effects. At a time when we have hit a critical point in the opioid epidemic, the increasing use of kratom as an alternative or adjunct to opioid use is extremely concerning. (FDA, 14.11.2017)

https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm584970.htm