Pentylone
Aliases: 4-meppp, 4-mฮฑppp, bk-mbdp, bk-methyl-k, mppp
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
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 20-40 min | 3-4 hrs | - | 3.3-4.7 hrs |
| Insufflated | 1-5 min | 30 min | 1-2 hrs | 1.5-2.6 hrs |
| Rectal | 5-15 min | 30 min | 1-2 hrs | 1.6-2.8 hrs |
Effect Profile
5 reportsScores (1–10) 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 and anxiety/jitters with 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 5 Erowid experience reports
Positive Effects 2
Euphoria
80.0%
70%
Stimulation
60.0%
70%
Adverse Effects 1
Anxiety
80.0%
70%
Combinations
Pentylone's nerd page
Pharmacology, chemical data, effect profiles, and more
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