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    4-Bromoamphetamine Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 1 source
    • 1 ROA with full dose ladder
    • duration data present
    • 18 combo interactions documented

    Stimulant

    Summary

    4-Bromoamphetamine is a stimulant amphetamine. Reported effects include euphoria, color enhancement, time distortion, and wakefulness. Limited data is available on its dosage and safety profile.

    Dose Information

    ROA Light Common Strong Heavy
    Oral 5-10mg 10-20mg 20-30mg 30mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects

    ROA Onset Peak Offset Total
    Oral 20-60 min 1-3 hrs 2-4 hrs 4-8 hrs

    Effect Profile

    Scores (1–10) curated from multiple sources:

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

    Full methodology

    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:
    Erowid Experience Reports PsychonautWiki 4-Bromoamphetamine
    View methodology →

    Tolerance

    Build-up develops over days to weeks of regular use
    Reset 3–7 days for acute; 1–3 weeks for full reset

    Tolerance Decay

    Half tolerance 3d Baseline ~21d

    Subjective stimulant tolerance builds quickly with repeated use; for serotonergic neurotoxicity risk, any frequency of use increases harm potential; long inter-dose intervals (weeks) are prudent if one does not abstain. Data quality is largely anecdotal due to minimal human data for 4-BA.

    Cross-Tolerances

    Other amphetamines
    50%
    MDMA-like releasers (e.g., 5-APB/6-APB)
    50%

    Effects

    Positive
    • Stimulation
    • Physical euphoria
    Negative
    • Increased heart rate
    • Vasoconstriction
    • Insomnia
    • Teeth grinding
    • Pupil dilation
    • Nausea
    • Increased perspiration
    Neutral
    • Decreased appetite
    Positive
    • Alertness enhancement
    • Euphoria
    • Wakefulness
    • Motivation enhancement
    • Cognitive euphoria
    • Focus enhancement
    Negative
    • Anxiety
    Neutral
    • Talkativeness
    • Time distortion
    • Thought acceleration
    Positive
    • Increased music appreciation
    • Increased libido
    • Tactile enhancement
    • Color enhancement
    • Enhanced tactile sensation
    Negative
    • Light sensitivity
    • Appetite suppression
    • Dehydration
    • Disinhibition
    Neutral
    • Drifting

    Combinations TripSit

    Cross-Check 4-Bromoamphetamine with another substance

    4-Bromoamphetamine's nerd page Pharmacology, chemical data, effect profiles, and more
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    Helpful Links

    📘 Experience Reports 📖 PsychonautWiki