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Opioids

Kratom (Mitragyna speciosa)

Street names: Ketum, Thang, Kakuam, Biak

Kratom (Mitragyna speciosa) — Green powder, capsules, extracts, liquid shots sold at smoke shops/gas stations

What it does

  • Low dose: stimulant energy, focus
  • High dose: opioid-like sedation, pain relief
  • Mitragynine acts on opioid receptors

Key risks

  • Opioid-like dependence and withdrawal (insomnia, muscle aches, irritability, diarrhea)
  • FDA links to seizures, liver damage, hallucinations
  • Salmonella contamination — 2018 outbreak, 35+ deaths linked to tainted kratom
  • Unregulated products — unknown alkaloid content, contamination
  • Naloxone DOES reverse kratom overdose (opioid receptor activity)
  • Gateway to opioid use for some

Overdose signs

  • Seizures
  • Respiratory depression (high doses)
  • Liver injury signs (jaundice, dark urine)
  • Hallucinations, confusion

📋Quick facts

Also known asKetum, Thang, Kakuam, Biak
CategoryOpioids
Schedule / classNot federally scheduled (US) — FDA warnings; illegal in 6+ states; banned Thailand (re-legalized 2021), some EU
AppearanceGreen powder, capsules, extracts, liquid shots sold at smoke shops/gas stations
Street price~$10–$30 per ounce powder; extracts $20–$50; shots $8–$15
Legal statusNot federally scheduled; illegal in Alabama, Arkansas, Indiana, Rhode Island, Vermont, Wisconsin; FDA warns against all use
Last updated2026-09-17
Sources: FDA, Mayo Clinic, NIDA

Category comparison — Opioids

SubstanceClassTop risksStreet price
Kratom (Mitragyna speciosa)Not federally scheduledOpioid-like dependence and withdrawal (insomnia, muscle aches, irritability, diarrhea); FDA links to seizures, liver damage, hallucinations~$10–$30 per ounce powder
Tianeptine (Gas Station Heroin)Not federally scheduled'Gas station heroin' — produces opioid dependence WITHDRAWAL as severe as oxycodone/heroin; FDA: linked to coma, respiratory depression, seizures, and DEATH~$15–$40 per bottle
HeroinSchedule IExtremely addictive — physical dependence in weeks; Overdose: breathing slows or stops~$10–$40 per bag
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does Kratom (Mitragyna speciosa) look like?

Green powder, capsules, extracts, liquid shots sold at smoke shops/gas stations

What are the signs of a Kratom (Mitragyna speciosa) overdose?

Seizures; Respiratory depression (high doses); Liver injury signs (jaundice, dark urine) Call emergency services immediately and give naloxone if available — it reverses opioid overdoses.

How addictive is it?

Opioid-like dependence and withdrawal (insomnia, muscle aches, irritability, diarrhea) Dependence can develop with regular use.

🔗Sources & further reading

Facts on this page are compiled from these primary sources. External links open in a new tab.