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    Ephylone

    Aliases: Bk-ebdp, N-ethyl-pentylone

    Stimulant

    Summary PsychonautWiki

    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 PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 10-20mg 20-40mg 40-80mg 80mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects PsychonautWiki

    Effect Profile

    4 reports

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    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:
    Erowid Experience Reports PsychonautWiki Ephylone
    View methodology →

    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 Erowid

    Aggregated from 4 Erowid experience reports

    Positive Effects 0

    Adverse Effects 1

    Anxiety 75.0% 70%

    Combinations TripSit

    Ephylone's nerd page Pharmacology, chemical data, effect profiles, and more
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    Helpful Links

    📘 Experience Reports 📖 PsychonautWiki