Pentylone, overall, has become my drug of choice,having tried all the classic mainstream - including - hard drugs (heroin, meth, etc). It is a very unique and interesting compound.
Pentylone
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 29 combo interactions documented
- classified Research-chemical
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 29 combo interactions documented
- classified Research-chemical
Aliases: bk-mbdp, bk-methyl-k
Summary
A stimulant, empathogen and substituted cathinone. It was first synthesised in the 1960s, and re-appeared on the research chemical scene in 2010. Still, very little is known about the pharmacology or effects of this compound.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 10-20mg | 20-40mg | 40-80mg | 80mg+ |
Light
Common
Strong
Heavy
Sources
Oral
Dose ladder — PsychonautWiki, TripSitOnset, Duration & After-effects
| ROA | Onset | Peak | Total |
|---|---|---|---|
| Oral | 20-40 min | 3-4 hrs | 3-4 hrs |
Effect Profile
4 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Stimulant
6.5
Strong
6/10
Strong euphoria with strong anxiety/jitters, moderate focus and stimulation
Stimulation / Energy
×3
6
stimulation
wakefulness
alertness enhancement
Euphoria / Mood Lift
×2
10
physical euphoria
euphoria
cognitive euphoria
motivation enhancement
Focus / Productivity
×2
7
focus enhancement
motivation enhancement
thought acceleration
Anxiety / Jitters
×1
10
anxiety
increased heart rate
teeth grinding
vasoconstriction
Based on reports from:
Tolerance
Build-up
develops rapidly, often within a single session; compulsive redosing common
Reset
a few days for acute tolerance
Tolerance Decay
Full tolerance
1h
Half tolerance
4d
Baseline
~5d
Effects
Aggregated from 4 single-substance Erowid experience reports; 1 Erowid reports where another drug was taken too are left out
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 or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. 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.
Too few reports for bars: these effects come from 4 single-substance Erowid reports, and a bar is drawn only from 20 reports or more. With fewer, a percentage cannot tell a common effect from a rare one. Counts are shown instead. Why 20?
Effect glossary — · full glossary
Positive Effects 0
Adverse Effects 1
3 of 4
–
Combinations
Cross-Check Pentylone 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 5 reports 2 positive 1 neutral 2 cautionary visit
Last year I made an order for some insanely cheap Chinese chemicals, mostly mescaline deritivatives. After 6 months of waiting for them to be synthed (it's pretty shady to take someone's money when you don't in fact even have the substances synthed yet...
So in my search to find a rc equally as amazing as methylone I've come accross pentylone and this is what I experianced. I started my night at 9pm with a rediculously low dose of 10mg taken orally.
Sourced a small amount of this substance as it is still uncontrolled as of writing this. It came as a fluffy white and slightly cakey powder that is very difficult to handle due to it absorbing so much static electricity. It was about 100mg that was insufflated nasally over the course of about 3 hours.
I'm writing this one mainly as a warning because I see a lot of bad potential, especially since it has a similar name to methylone which is now banned in the US and some are looking for replacements. I can promise you this is nothing at all like methylone (M1).
Bluelight 7 threads 2 positive 5 neutral visit
Last year I made an order for some insanely cheap Chinese chemicals, mostly mescaline deritivatives. After 6 months of waiting for them to be synthed (it's pretty shady to take someone's money when you don't in fact even have the substances synthed yet...
(Sorry, still no mg scale, Santa seemed to miss this house.) Also, I apologize about the title, it was approximately 300 mg ingested, not half a gram. I just had half a gram that was going to play with for that session.
Substance was acquired from a vendor who is fairly reputable on a certain forum, but does not have my complete trust due to me having received some impure mdpv from him. Appearance is slightly off white, chalky and powdery, slightly wet. Smells chemically and faintly of lemongrass.
Prior to this experiment, I did an allergy test as I do with all new RC's. ~5-10 mg, nothing bad happened. ROA: Insufflation Other stimulant experiences (excluding caffeine and nicotine) are 4-FA and Butylone.
So in my search to find a rc equally as amazing as methylone I've come accross pentylone and this is what I experianced. I started my night at 9pm with a rediculously low dose of 10mg taken oraly.
i was use to buying mephedrone or methynol and was told that penthynol is lighter..... that has not been the case for me a .1 for me of mephedrone was a teaser truth be told i could do 2 grams a day..... recently with the law change i opted to try penthynol.....
DISCLAIMER: ALL RCS SHOULD BE TREATED WITH CARE AND YOU SHOULD NOT DO SUCH HIGH DOSES OF RELETIVELY UNKNOWN CHEMS, OR IV THEM IN GENERAL UNLESS YOU ARE EXPERIENCED IN THE AREA. KNOW YOUR BODY AND KNOW YOUR MIND. So so where to begin. I'm glad I am still high to right this otherwise it would never have happened.
Pentylone's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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The PsychonautWiki Journal logging app doesn't include every substance. To track Pentylone there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:
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Import this file as custom substances
and you get "Pentylone (Substance Search)" with every
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Name
Pentylone
Unit
mg
Description
Pentylone Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 10-20 · common 20-40 · strong 40-80 · heavy 80+ Oral duration: onset 20-40m · peak 3-4h · total 3-4h · after-effects 1-6h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 30 mg (Oral).
The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.
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