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Collated from PsychonautWiki, TripSit. Where sources differ (e.g. dosing), Compare shows them side by side.

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Also known as Mitragyna Speciosa, กระท่อม (Thai), Ketum, Kratom, KratumPW

A drug made out of the leaves of Mitragyna Speciosa, which is related to coffee. Stimulating at lower doses, with opioid effects at higher doses. Frequent heavy use can cause physical addiction and withdrawals.TS

Addiction potentialPW
produces dependence with chronic use and has a high abuse potential
ToxicityPW
low toxicity
TolerancePW
full tolerance develops with prolonged and repeated use; half after 3 - 7 days; baseline after 1 - 2 weeks
Cross-tolerancePW
opioids

Oral

Route dataPsychonautWiki

ThresholdLightCommonStrongHeavy
1 g2–3 g3–5 g5–8 g8 g+
010 g
LightCommonStrongHeavy
Onset20–40 minutes
Peak1–2 hours
Offset3–6 hours
Total2–4 hours
OnsetCome-upPeakOffset

Caution / uncertainPW

Plan when to take Kratom — see where onset, peak and comedown land on the clock

Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.