Beta test rollout. This site is in community QA — please send feature requests, bug reports and data corrections on the Feedback page or on GitHub.

Home
    Disclaimer

    SAM-e Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 2 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • PubChem toxicity data

    Aliases: Adomet, Ademetionine, S-adenosyl methionine

    Summary PsychonautWiki

    S-Adenosyl-L-methionine (also called S-Adenosyl methionine, Ademethionine and commonly as SAMe and SAM-e) is a common cosubstrate involved in methyl group transfers, transsulfuration, and aminopropylation in biological organisms. SAMe is an amino acid methionine bound to an ATP molecule that circulates in the blood naturally and acts as a 'methyl donor'. A methyl group in chemistry is simply a carbon molecule (bound to some hydrogens), and donating a methyl group to other molecules can accelerate or preserve reactions in the body as a form of metabolic 'maintenance'.

    Dose Information dose.wiki PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 400-800mg 800-1200mg 1200-1600mg 1600mg+
    Light Common Strong Heavy
    Sources

    Oral

    Dose ladder — dose.wiki, PsychonautWiki

    Onset, Duration & After-effects dose.wiki PsychonautWiki

    ROA Onset Peak Offset After Effects Total
    Oral 1.67-3 hrs 4-6 hrs 2-4 hrs 24 hrs 7.67-13 hrs

    Tolerance

    Build-up varies by mechanism; therapeutic tolerance may develop over weeks of regular use
    Reset typically days to weeks after discontinuation

    Tolerance Decay

    Full tolerance 3d Half tolerance 8d Baseline ~14d

    Effects dose.wiki

    Positive
    Negative
    Neutral
    Positive
    Neutral
    Positive
    Negative
    Neutral
    →

    Helpful Links

    Import into PsychonautWiki Journal

    The PsychonautWiki Journal app includes SAM-e, but its built-in data can be thinner than ours. Importing this file adds a separate "SAM-e (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 "SAM-e (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.