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    🧪 This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.

    5-APB

    Aliases: Nrg-3, 6-apb, Benzofury, Head candy, 5apb, 6apb

    Psychedelic Stimulant Empathogen Research-chemical

    Summary TheDrug.Wiki Erowid TripSit PsychonautWiki

    5-(2-Aminopropyl)benzofuran (commonly known as 5-APB) is a lesser-known novel entactogen of the benzofuran class that produces MDA-like entactogenic and stimulating effects when administered. It is structurally related to entactogens like 5-MAPB, 6-APB, and MDA. 5-APB was first synthesized in 1993 by psychedelic chemist and researcher David E.

    Perspectives

    “The moniker “Benzo-Fury” is very deceptive. It is an overall mild empathogen, not as intensely stimulating or explosively euphoric as MDMA. Rather, it is a light psychedelic hypomania with a few subtle hallucinatory effects.”

    Dose Information TheDrug.Wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 40-60mg 60-80mg 80-100mg 100mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TheDrug.Wiki TripSit PsychonautWiki

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 19-60 min 45-90 min 2-4 hrs 1.5-3 hrs 6-48 hrs 7-8 hrs
    Insufflated 4-15 min 19-40 min 2-4 hrs 1.5-3 hrs 4-24 hrs 7-8 hrs
    Rectal 10-30 min 45-90 min 2.5-4 hrs 2-3 hrs 6-24 hrs 7-8 hrs

    Effect Profile

    95 reports

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Validated against 89 Erowid trip reports
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Psychedelic 7.6
    Intense 8/10

    Strong visuals, auditory effects, and body load with moderate headspace

    Visual Intensity ×3
    10
    visual geometry color enhancement tracers pattern recognition enhancement
    Headspace Depth ×3
    7
    personal meaning enhancement emotion enhancement time distortion
    Auditory Effects ×1
    10
    auditory distortion auditory hallucination
    ⚠ Body Load / Somatic Effects ×1
    10
    nausea temperature regulation suppression vasoconstriction teeth grinding increased heart rate jaw clenching +1 more
    Empathogen 10.0
    Extreme 10/10

    Strong empathy, euphoria, stimulation, and sensory enhancement

    Empathy / Social Openness ×3
    10
    empathy enhancement empathy empathy, affection and sociability enhancement feelings of empathy sociability enhancement affection enhancement +1 more
    Euphoria / Mood Elevation ×2
    10
    physical euphoria euphoria cognitive euphoria emotion enhancement
    Stimulation ×1
    10
    stimulation wakefulness teeth grinding increased heart rate
    Sensory Enhancement ×1
    10
    tactile enhancement color enhancement increased libido
    Stimulant 8.8
    Intense+ 9/10

    Strong stimulation, euphoria, focus, and anxiety/jitters

    Stimulation / Energy ×3
    10
    stimulation wakefulness
    Euphoria / Mood Lift ×2
    10
    physical euphoria euphoria cognitive euphoria motivation enhancement
    Focus / Productivity ×2
    10
    focus enhancement analysis enhancement memory enhancement motivation enhancement thought acceleration
    ⚠ Anxiety / Jitters ×1
    10
    anxiety paranoia increased heart rate teeth grinding jaw clenching vasoconstriction +1 more
    Based on reports from:
    Bluelight Big & Dandy Thread Erowid Experience Reports PsychonautWiki 5-APB
    View methodology →

    Tolerance

    Build-up develops rapidly after a single use
    Reset 7–14 days for baseline

    Tolerance Decay

    Full tolerance 1d Half tolerance 7d Baseline ~14d

    Pattern inferred from user reports across benzofurans and MDMA-like agents. Acute tolerance develops within a session; effects are notably blunted by redosing late. Subjective tolerance partially subsides over 1–2 weeks, with baseline often reported after 3–5 weeks. Data quality: anecdotal/community-derived.

    Cross-Tolerances

    MDMA
    60%
    MDA
    60%
    6-APB
    70%
    5-MAPB
    70%

    Effects Erowid Bluelight

    Aggregated from 89 Erowid and 6 Bluelight experience reports

    Positive Effects 17

    Euphoria 73.7% 91%
    Music Enhancement 63.1% 89%
    Visual Distortions 54.8% 75%
    Empathy 54.7% 85%
    Tactile Enhancement 45.3% 90%
    Color Enhancement 35.8% 80%
    Contentment 33.3% 80%
    Sociability Enhancement 33.3% 75%
    Body High 29.5% 89%
    Focus Enhancement 24.2% 75%
    Numbness 16.7% 80%
    Taste Distortion 16.7% 85%
    Love 16.7% 80%
    Empathogenic Connection 16.7% 85%
    Tingling 16.7% 80%
    Closed-Eye Visuals 14.8% 85%
    Creativity Enhancement 9.0% 70%

    Adverse Effects 16

    Jaw Clenching 36.8% 75%
    Anxiety 33.7% 70%
    Body Load 33.3% 82%
    Nausea 30.5% 82%
    Confusion 28.1% 70%
    Headache 18.0% 70%
    Diarrhea 16.7% 70%
    Emotional Blunting 16.7% 75%
    Sociability Suppression 16.7% 80%
    Irritability 16.7% 65%
    Increased Heart Rate 13.5% 70%
    Motor Impairment 9.0% 70%
    Memory Suppression 5.6% 70%
    Seizure 4.5% 70%
    Appetite Suppression 3.4% 70%
    Psychosis 3.4% 70%

    Combinations TripSit

    5-APB's nerd page Pharmacology, chemical data, effect profiles, and more
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    Helpful Links

    📘 Experience Reports 📖 TheDrug.Wiki 📖 TripSit 📖 Bluelight 📖 PsychonautWiki