Ephylone (bk-EBDP) 1st Pass Vape Test I had a dream last night, it went something like this: Before conducting the experiment on N-ethypentylone (bk-EBDP, ephylone) the oil burner was torched to a red glow to remove any possible carbonized methamphetamine residue.
Ephylone
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 18 combo interactions documented
- PubChem toxicity data
Aliases: Bk-ebdp, N-ethyl-pentylone
Summary
N-Ethylpentylone (also known as bk-EBDP, βk-EBDP, and ephylone) is a novel stimulant-entactogen substance of the cathinone class. Ephylone is chemically related to pentylone and belongs to a group of compounds known as the substituted cathinones. Little is known about its pharmacology, although it likely produces its effects by increasing levels of serotonin, dopamine, and norepinephrine in the brain.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 10-20mg | 20-40mg | 40-80mg | 80mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
Effect Profile
4 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Empathogen
3.7
Moderate
4/10
Moderate stimulation and sensory enhancement with low euphoria and empathy
Empathy / Social Openness
×3
2
increased sociability
Euphoria / Mood Elevation
×2
3
euphoria
Stimulation
×1
7
stimulation
wakefulness
teeth grinding
increased heart rate
Sensory Enhancement
×1
7
tactile enhancement
color enhancement
increased libido
Stimulant
4.2
Moderate
4/10
Strong anxiety/jitters with moderate stimulation, mild euphoria, low focus
Stimulation / Energy
×3
6
stimulation
wakefulness
alertness enhancement
Euphoria / Mood Lift
×2
5
euphoria
motivation enhancement
Focus / Productivity
×2
3
thought acceleration
motivation enhancement
Anxiety / Jitters
×1
10
anxiety
increased heart rate
teeth grinding
vasoconstriction
sweating
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
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 4 Erowid experience reports
Positive Effects 0
Adverse Effects 1
Anxiety
75.0%
70%
Combinations
Cross-Check Ephylone 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 3 reports 3 neutral visit
I gathered as much of the very little data that existeted at the time about doses and effects from forums. 7 grams of BK-EBDP ingested in right about 48 hours orally in doses starting at 100mg and ending at close to 500mg.
The new cathinone, almost unknown! I decided to try 100mg of BK-EBDP (EPHILONE) on Saturday, after finished to work and had a regular dinner, I crushed a 100mg crystal and I took it putting all under my tongue.
Ephylone's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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