First, I'd like to state that I am not a casual drug user (I don't even smoke weed). I do smoke tobacco, however. I was recently diagnosed with a form of tendonitis that gave me considerable pain in my right wrist at the thumb and my options were surgery to correct the problem (followed by physical therapy for several...
Kratom
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 29 combo interactions documented
- toxicity data (PsychonautWiki)
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 29 combo interactions documented
- toxicity data (PsychonautWiki)
Aliases: Biak, Thom, Ketum, Thang, Madat
Summary
Kratom (Mitragyna speciosa) is a tropical tree native to Southeast Asia with leaves containing indole alkaloids including mitragynine and 7-hydroxymitragynine. Effects are dose-dependent: low doses produce stimulant effects while higher doses produce opioid-like sedation and analgesia. Potency varies significantly between strains, batches, and vein colors (red, green, white, yellow).
Perspectives
“Kratom is a remarkable botanical, but if you are going to use it, dose sensibly and be careful not to make a habit of it.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral BA ~20% | 0.5-1.5g | 1.5-3g | 3-6g | 6g+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 10-40 min | 30-60 min | 1-2 hrs | 2-4 hrs | 2-5 hrs |
Effect Profile
645 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 559 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Stimulant
8.4
Intense
8/10
Strong euphoria and focus with moderate stimulation, mild anxiety/jitters
Stimulation / Energy
×3
7
stimulation
Euphoria / Mood Lift
×2
10
physical euphoria
cognitive euphoria
motivation enhancement
Focus / Productivity
×2
10
focus enhancement
motivation enhancement
thought acceleration
Anxiety / Jitters
×1
4
Opioid
7.7
Intense
8/10
Strong euphoria, itching/nausea, pain relief, and sedation
Euphoria / Warmth
×3
10
physical euphoria
cognitive euphoria
Analgesia
×2
8
pain relief
Sedation / Relaxation
×1
8
sedation
muscle relaxation
Itching / Nausea
×1
10
nausea
constipation
Based on reports from:
Tolerance
Build-up
develops over weeks of daily use; partial cross-tolerance with classical opioids
Reset
7–14 days for partial reset; full reset may take weeks — tolerance loss greatly increases overdose risk
Tolerance Decay
Full tolerance
3d
Half tolerance
21d
Baseline
~35d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 559 Erowid and 86 Bluelight experience reports
Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect, something witnessed, or "did not happen" count too). Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.
Effect glossary — · full glossary
Positive Effects 55
49.4%
91%
42.9%
86%
38.0%
85%
34.2%
84%
34.0%
82%
28.7%
85%
26.6%
81%
22.1%
85%
21.2%
85%
19.7%
–
15.5%
87%
15.3%
87%
13.6%
72%
12.1%
82%
12.0%
85%
12.0%
82%
10.0%
73%
Auditory Effects
9.0%
88%
8.0%
81%
8.0%
84%
Adverse Effects 38
40.1%
88%
22.0%
89%
20.0%
86%
18.0%
84%
16.0%
79%
11.8%
82%
9.5%
80%
8.0%
81%
8.0%
79%
8.0%
75%
7.0%
–
6.0%
87%
6.0%
75%
6.0%
80%
5.2%
–
5.1%
87%
4.0%
80%
4.0%
85%
4.0%
85%
4.0%
88%
Combinations
Cross-Check Kratom with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.
Erowid 8 reports 3 positive 2 neutral 3 cautionary visit
I took Kratom every day, three to four times per day, for more than six years. I kept my dosage pretty consistent at half a tablespoon in a tea. When the DEA started threatening to ban it, I decided it was time to quit.
Wow what to say about Kratom other than I found it an excellent tool for self healing. I bought a small 4 gram vial off an online vendor looking for something to give me the inner softness and perception to work on my mind/body. I was extremely impressed.
Kratom Putting More Hours in the Workday This report is part of an eight-report collection. The collection consists of a summary report that is retrospective and generalized in nature as well as seven [of which this is one] more detailed chronicles of my experiences with various chemicals used intentionally for work...
Kratom: A Medicinal and Recreational Ally Background: I have been working with leaves of the tree Mitragyna speciosa (kratom) for a couple years now, and wish to share what I have learned of this wonderful plant. I am a 24 year old male weighing 128 pounds.
It has been an eventful four months since kratom unexpectedly entered my life and assumed in it a role of moderate significance. I am a healthy and athletic twenty year old male attending a West coast liberal arts college.
Purchased 28g (1 oz) in the form of 50 capsules from online vendor. This is my first experience with kratom & I prefer to be conservative with new drugs/herbs. I am a recovering addict, who has noticeably begun withdrawing from benzodiazepines which I stopped just over 2 weeks ago.
[Erowid Note: Driving while intoxicated, tripping, or extremely sleep deprived is dangerous and irresponsible because it endangers other people. Don't do it! ] A bit of history first.
Bluelight 8 threads 1 positive 7 neutral visit
Hey, So I decided to finally try Kratom tea, in place of my normal codiene dose. Instead of proper tea, however, I thought it would be good to mix it hot chocolate to appeal to my sweet tooth, and also cover up the apparently horrible taste.
Opening my eyes I stare at the thousands of tiny dots that compose the drop ceiling above. For a few minutes I lie there as the sun shines in. Another beautiful day. I should leave it there, but another beautiful day usually means to me, another day I’m going to waste lost in this fog of pain, sadness and loneliness.
So .. something new! Bit of a BG: I've been around BL / sampling + abusing drugs for damn near five years now. Thru that time, I've always smoked cannabis on/off [still love it, but have to lay off due to job search], had my raving days where I'd do all the MDMA / mushrooms / ketamine I could get ..
New Year's Kratom Chillout On december 31st I decided to go to a friend's party. I ate like I always do, maybe even more than usual cause some alcohol was supposed to run down my throat that night and my tollerance is extremely weak, practically non existant.
Lately I have been getting very good quality Kratom and Kanna, Sceletium Tortuosum. I think that the Kratom trips i have had none of you have even come close to experience. Strong Physical Pleasure and Euphoria. Kratom not only is it mentally Euphoric but the physical sensation is very pleasurable.
Anyhow I am having a hard time writing this report. The effects of the Maeng Da Kratom are quite strong. I am getting a nod... I have issues with Bronchitis and Nasal Congestion and wow Kratom is amazing.
Prologue A bit of insight on my kratom usage. The first time i did it i special ordered some from a smokeshop (ground leaves) because i knew by the time it arrived i'd be withdrawaling from my worst hydrocodone dependency to date.
I have quite a bit of experience with kratom in the last 6 months since starting to use it. I have done it at least 50 times now with the maximum amount I used in a day being maybe about 20 grams.
Bluelight Reference Guide
Kratom Kratom Megathread V.2
Original Thread here Kratom basics: Curious About Kratom? Here's What We Know, Based On Science, Of Course - Kratom.org There's a lot of information on kratom out there, but a lot of it's biased or outdated. This guide covers almost everything, based on current research.
Read full thread on Bluelight →
Kratom's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
Import into PsychonautWiki Journal
The PsychonautWiki Journal app includes Kratom, but its built-in data can be thinner than ours. Importing this file adds a separate "Kratom (Substance Search)" custom substance with our dose ranges, durations and tolerance, so you can log against whichever you prefer.
⬇ Download import file
Import this file as custom substances
and you get "Kratom (Substance Search)" with every
route's full dose ladder and timeline, no typing. Works on iOS and
Android (v15+); the format is confirmed by the app's
developer.
Ranges are harm-reduction guidance, not a prescription.
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Kratom? Let us know. Reports are reviewed by moderators — this is not posted publicly.