Kratom: Substance of Abuse or Therapeutic Plant?

Psychiatr Clin North Am. 2022 Sep;45(3):415-430. doi: 10.1016/j.psc.2022.04.002. Epub 2022 Jul 31.

Abstract

Kratom is the common term for Mitragyna speciosa and its products. Its major active compounds are mitragynine and 7-hydroxymitragynine. An estimated 2.1 million US residents used kratom in 2020, as a "legal high" and self-medication for pain, opioid withdrawal, and other conditions. Up to 20% of US kratom users report symptoms consistent with kratom use disorder. Kratom use is associated with medical toxicity and death. Causality is difficult to prove as almost all cases involve other psychoactive substances. Daily, high-dose use may result in kratom use disorder and opioid-like withdrawal on cessation of use. These are best treated with buprenorphine.

Keywords: 7-Hydroxymitragynine; Analgesia; Biased agonist; Kratom; Mitragynine; Opioid receptor; Withdrawal.

Publication types

  • Review

MeSH terms

  • Analgesics, Opioid
  • Humans
  • Mitragyna*
  • Plant Extracts / therapeutic use
  • Substance Withdrawal Syndrome* / drug therapy

Substances

  • Analgesics, Opioid
  • Plant Extracts