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    THJ-2201 Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 2 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • 27 combo interactions documented

    Cannabinoid

    Summary PsychonautWiki

    THJ-2201 (1-​[(5-​fluoropentyl)-​1H-​indazol-​3-​yl](naphthalen-​1-​yl)methanone) is a synthetic cannabinoid and analog of AM-2201. It has been marketed by many research chemical vendors as a legal alternative to the popular AM-2201, which had been banned in 2011.

    Dose Information dose.wiki PsychonautWiki

    ROA Light Common Strong Heavy
    Smoked 0.5-1mg 1-2mg 2-5mg 5mg+
    Light Common Strong Heavy
    Sources

    Smoked

    Dose ladder — dose.wiki, PsychonautWiki

    Onset, Duration & After-effects PsychonautWiki

    ROA Onset Peak Offset After Effects Total
    Smoked 6-12 min 30-48 min 0-1 min 60-90 min 1-2 hrs

    Tolerance

    Build-up develops over weeks of regular use via CB1 receptor downregulation
    Reset 2–4 weeks for most users; heavy users may need longer

    Tolerance Decay

    Full tolerance 3d Half tolerance 21d Baseline ~28d

    Effects

    Positive
    Negative
    Neutral
    Positive
    Negative
    Positive
    Negative
    Neutral

    Combinations

    Cross-Check THJ-2201 with another substance

    THJ-2201's nerd page Pharmacology, chemical data, effect profiles, and more
    →

    Helpful Links

    📘 Experience Reports 📖 PsychonautWiki
    Import into PsychonautWiki Journal

    The PsychonautWiki Journal app includes THJ-2201, but its built-in data can be thinner than ours. Importing this file adds a separate "THJ-2201 (Substance Search)" custom substance with our dose ranges, durations and tolerance, so you can log against whichever you prefer.

    ⬇ Download import file Import this file as custom substances and you get "THJ-2201 (Substance Search)" with every route's full dose ladder and timeline, no typing. Works on iOS and Android (v15+); the format is confirmed by the app's developer.

    Ranges are harm-reduction guidance, not a prescription.