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

    3-FA

    Aliases: Pal-353, 3-fluoroamphetamine, 3fa

    Stimulant Research-chemical

    Summary TheDrug.Wiki TripSit PsychonautWiki

    3-FA is a potent stimulant with mild entactogenic properties. It releases dopamine at levels significantly higher than amphetamine at equivalent doses but lacks the productivity-enhancing effects of 2-FA or 2-FMA. The substance has an extremely limited research history and unknown long-term toxicity profile.

    Dose Information TheDrug.Wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 20-30mg 30-50mg 50-70mg 70mg+
    Light Common Strong Heavy

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

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 20-60 min 30-60 min 2-4 hrs 2-4 hrs 1-12 hrs 4.8-10 hrs
    Insufflated 1-10 min 10-30 min 1.5-3 hrs 1-2 hrs 1-12 hrs 2.7-5.7 hrs

    Effect Profile

    5 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 6.3
    Strong 6/10

    Strong euphoria with moderate stimulation, mild sensory enhancement and empathy

    Empathy / Social Openness ×3
    4
    enhanced sociability increased sociability
    Euphoria / Mood Elevation ×2
    10
    physical euphoria cognitive euphoria euphoria mood lift
    Stimulation ×1
    7
    stimulation wakefulness teeth grinding increased heart rate
    Sensory Enhancement ×1
    5
    tactile enhancement increased libido
    Stimulant 6.6
    Strong+ 7/10

    Strong euphoria, anxiety/jitters, and focus with mild stimulation

    Stimulation / Energy ×3
    5
    stimulation wakefulness
    Euphoria / Mood Lift ×2
    10
    physical euphoria cognitive euphoria euphoria mood lift motivation enhancement
    Focus / Productivity ×2
    9
    focus enhancement analysis enhancement motivation enhancement thought acceleration
    ⚠ Anxiety / Jitters ×1
    10
    anxiety increased heart rate teeth grinding bruxism sweating
    Based on reports from:
    Erowid Experience Reports PsychonautWiki 3-FA
    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

    Full tolerance 1d Half tolerance 3d Baseline ~10d

    Acute tolerance to subjective and cardiovascular effects develops within a session; partial recovery occurs over several days with baseline typically returning within 1–2 weeks if abstinent. Cross-tolerance with other amphetamines is expected due to shared transporter-mediated mechanisms.

    Cross-Tolerances

    Amphetamine
    70%
    Methamphetamine
    60%
    4-FA (4-fluoroamphetamine)
    50%
    2-FA (2-fluoroamphetamine)
    70%

    Effects Erowid

    Aggregated from 5 Erowid experience reports

    Positive Effects 7

    Empathy 100.0% 70%
    Stimulation 100.0% 70%
    Euphoria 80.0% 70%
    Music Enhancement 80.0% 70%
    Tactile Enhancement 80.0% 70%
    Focus Enhancement 60.0% 70%
    Body High 60.0% 70%

    Adverse Effects 4

    Jaw Clenching 80.0% 70%
    Sweating 80.0% 70%
    Increased Heart Rate 80.0% 70%
    Anxiety 60.0% 70%

    Combinations TripSit

    3-FA's nerd page Pharmacology, chemical data, effect profiles, and more
    →

    Helpful Links

    📘 Experience Reports 📖 TheDrug.Wiki 📖 TripSit 📖 PsychonautWiki