During my research, I've written about my experiences, but I believe this is the first drug worthy of submitting several paragraphs about and isn't so heavily reported on (as the case is with superstar cathinone-derivative, mephedrone). One thing I really love is that wonderful family of cathinones.
Butylone
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Aliases: B1, Ξk-mbdb, Bk-methyl-j, bk-mbdb
Summary
Butylone is a synthetic cathinone structurally related to MDMA and methylone, but with milder entactogenic effects and stronger stimulation. It was first synthesized in 1967 but remained obscure until 2005. Reported to be less potent than methylone, with more dopaminergic stimulation and less serotonergic euphoria.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 40-80mg | 80-125mg | 125-225mg | 225mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 20-40 min | 30-60 min | 1-2 hrs | 2-3 hrs | 3-5 hrs |
Effect Profile
31 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 31 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Empathogen
8.7
Intense+
9/10
Strong euphoria, stimulation, and sensory enhancement with moderate empathy
Empathy / Social Openness
×3
7
empathy, love, and sociability enhancement
Euphoria / Mood Elevation
×2
10
physical euphoria
cognitive euphoria
Stimulation
×1
10
stimulation
teeth grinding
increased heart rate
Sensory Enhancement
×1
10
tactile enhancement
increased libido
Stimulant
7.8
Intense
8/10
Strong euphoria, anxiety/jitters, focus, and stimulation
Stimulation / Energy
×3
8
stimulation
Euphoria / Mood Lift
×2
10
physical euphoria
cognitive euphoria
motivation enhancement
Focus / Productivity
×2
9
analysis enhancement
thought acceleration
motivation enhancement
Anxiety / Jitters
×1
10
anxiety
teeth grinding
increased heart rate
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
12h
Half tolerance
7d
Baseline
~14d
Acute tolerance: develops within a single session β the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Evidence for tolerance kinetics in butylone is limited to user reports and extrapolation from other serotonergic cathinones. Acute tolerance develops within a session and across consecutive days; perceived effects drop markedly on day 2β3, with partial recovery over 1β2 weeks and closer to baseline by ~3β4 weeks. Crossβtolerance is likely with MDMA/methylone due to overlapping transporter mechanisms. Data quality: anecdotal/theoretical.
Cross-Tolerances
Effects
Aggregated from 31 Erowid experience reports
Positive Effects 9
Euphoria
64.5%
70%
Stimulation
58.1%
70%
Empathy
38.7%
70%
Music Enhancement
35.5%
70%
Tactile Enhancement
32.3%
70%
Focus Enhancement
25.8%
70%
Introspection
25.8%
70%
Body High
16.1%
70%
Color Enhancement
16.1%
70%
Adverse Effects 10
Anxiety
38.7%
70%
Jaw Clenching
32.3%
70%
Confusion
25.8%
70%
Increased Heart Rate
19.4%
70%
Nausea
19.4%
70%
Appetite Suppression
12.9%
70%
Memory Suppression
12.9%
70%
Headache
12.9%
70%
Pupil Dilation
9.7%
70%
Sweating
9.7%
70%
Combinations
Cross-Check Butylone with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 8 reports 2 positive 4 neutral 2 cautionary visit
Well, I developed some interest in legal (europe) ketones lately, which got reinforced by one unearthly euphoric experience on mephedrone (4-mmc). After concluding that further experiments would definitely lead into addiction, I sought for ketone-MDxx-analogs.
A: Male, 200lbs. 200mg orally. Takes daily prescription Klonopin, Adderall, and Gabapentin. Did not take Adderall today, but did take regular doses of Klonopin and Gabapentin just before dosing. In hindsight this may have prevented him from feeling the drug but that is unknown. R: Female, 123lbs. 150mg orally.
The story starts at 20:00, it's about person M (me, 80kg), and J (a mate, 60kg) experiencing bk-mbdb Also a note that, the falling stars were due to the perzoid raines at the 12/13th of august 2009.
I've had a very uncomfortable experience with bk-MDBD that affected me for more than 2 full days. I did some irresponsible things but yet I think the chemical can be made responsible for the majority of shit I went through.
8:00 eat 160 mg of butylone on a mostly empty stomach. Already high on marijuana. 8:15 perhaps some increase in energy, a mild but very clean stimulation, or perhaps placebo 8:25 still not much 8:35 stimulation increasing, mild euphoria seems to be building.
This was left to me anonymously at my door step, I have just typed it up so I could share the experience with you guys. [QUOTE] Butylone experience Weight: Approx. 11 stone (70kg) Height: Approx.
My Background: Uneven level of experience with psychoactive substances. Experience with Marijuana, Nitrous Oxide, DXM, Alcohol, Benzodiazepines, Prescription Opiates, Modafinil and Mephedrone. No experience with MDMA or any true psychedelics (LSD, 2c's, Psilocybin, etc).
Bluelight 5 threads 1 positive 3 neutral 1 cautionary visit
Hi, new here, but a long time reader. Since the Meph ban me and my wife have been looking for something legal to take to have pleasant evenings in together, since with 2 kids, we're usually pretty shattered in the evenings, and we rarely get time together, so a little something to keep us awake and having fun all night...
Had this report lying around for a few weeks, just been to lazy to post it up! --- 8:00 eat 160 mg of butylone on a mostly empty stomach. Already high on marijuana.
third person fantasy from an inflamed imagination, as no monkeys willing to talk could be found. Set/Setting: After work, tired and needing a psychic lift, somewhat wary following the Ethylone (E1) experience one week ago, writing work to be done, drizzly Melbourne winter rain outside, partner home, as is the cat decid...
trial #2 with butylone. dosage: 20(?)mg insufflated total. also took 10 kratom capsules(.4g of premium commercial powder in each), 6 about 2 hours before the experience, 2 at t=0:55, and 2 more at t=1:25. this time there wasn't as much euphoria, and less stimulation.
Update.. Caution advised with this one. Skip to later posts for why I know this seems a bit suspect as someone has just done a very similar report, but this is legitimate and i've done a report before on here saying how rubbish NRG was when it first came out lol I've orally adminstered around 150mg 40 mins ago.
Butylone's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Butylone? Let us know. Reports are reviewed by moderators — this is not posted publicly.