Kratom; Ketum; Kakuam; Ithang; Thom
Stimulant; Depressant; Intoxicant
Mitragyna speciosa is a leafy tree that grows from 3-15 meters tall. Its leaves contain mitragynine and are chewed as an opiate substitute and stimulant in Thailand and South-East Asia, primarily among the working class. It has a relatively long history of human use.