Kratom is a tropical evergreen tree native to Southeast Asia and is related to the coffee plant. It has been used for centuries by natives of Southeast Asia for its stimulant effects. The fresh leaves can be chewed, smoked, dried and brewed as a tea, or eaten in food. Kratom extract can also be used to make a liquid product. The leaves of this plant are most commonly used as a stimulant or mood enhancer, but it also has a range of other potential benefits including pain relief, improved digestion, and increased immunity. The effects of kratom vary depending on the dose, with small doses producing stimulant effects and higher doses producing sedative effects. Kratom abuse has been reported by some users as a way to self-treat symptoms of opioid withdrawal.