Kratom (Mitragyna speciosa) is a tree native to Southeast Asia. The leaves contain a chemical called mitragynine, which works like opioids such as morphine.
Kratom has pain-relieving effects like opioid drugs. It also has many of the same serious safety concerns as other opioids.
People commonly use kratom for withdrawal from heroin, morphine, and other opioid drugs, as well as cough, depression, anxiety, and many other conditions, but there is no good scientific evidence to support these uses. Using kratom can also be unsafe.
Kratom is banned in some states and countries due to serious safety concerns. The US FDA has warned consumers to avoid using products containing kratom.