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    ๐Ÿงช This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.

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    • 4 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • 18 combo interactions documented
    • PubChem toxicity data
    • classified Tentative
    • classified Research-chemical

    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 4-6 hrs
    Insufflated 1-10 min 10-30 min 1.5-3 hrs 1-2 hrs 1-12 hrs 4-6 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 3โ€“7 days for acute; 1โ€“3 weeks for full reset

    Tolerance Decay

    Full tolerance 1d Half tolerance 7d Baseline ~10d

    Acute tolerance to subjective and cardiovascular effects develops within a session; partial recovery occurs over several days with baseline typically returning within 1โ€“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

    Cross-Check 3-FA with another substance

    Community 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 4 reports 3 neutral 1 cautionary visit
    3-FA: Hip Hip Hooray neutral exp #111774

    I have had only one experience prior to this with 3-FA. This previous experience involved a 54 mg insufflated dosage of 3-FA used as a booster on a 2-FMA initial dosage. This is my first attempt at oral administration with the substance.

    Anatoli Smorin · 3-Fluoroamphetamine · 23 mg oral / 30 mg vaporized / 29 mg insufflated / 68 mg insufflated
    A Happier Type of Amphetamine neutral exp #117317

    Context: Last Saturday, I had the pleasure of experiencing 3-FA for the first time. 3-FA was chosen because I did want to go out to party, however, I did not want to deplete my serotonin in massive amounts.

    snowcyclone · 3-Fluoroamphetamine · 15 mg oral / 30 mg oral / 20 mg oral / repeated smoked
    A Stronger Entactogen Than Expected neutral exp #114554

    Introduction IMPORTANT: If the chemical has activity below 50mg it is advisable to use a suitable, human-safe solvent and dose volumetrically, since many common milligram scales are not accurate below that amount. This report will be broken into two parts: initial dose and supplement.

    PsychoticCorpse · 3-Fluoroamphetamine · 30 mg oral / vaporized / 20 mg oral / 20 mg oral
    Three Cats / I 100% Regret Doing This cautionary exp #119127

    Context: I take amphetamines mainly when I want to have a lot of fun writing or when Iย’m desperate about a deadline. I had experience with D-amphetamine, 2-FA, 3-FA, 2-FMA, 3-FMA, Iย’m able to recognize the subtle differences between them and have used all of them in this context at varying doses with 2 routes of admini...

    Lucida · 3-Fluoroamphetamine · 25 mg insufflated / 25 mg insufflated / 25 mg insufflated / 25 mg insufflated
    3-FA's nerd page Pharmacology, chemical data, effect profiles, and more
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    Helpful Links

    ๐Ÿ“˜ Experience Reports ๐Ÿ“– TheDrug.Wiki ๐Ÿ“– TripSit ๐Ÿ“– PsychonautWiki