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Alexander Shulgin -- Memorial Gathering
August 2nd, 1pm-6pm, Berkeley CA
Psilocybin, Psilocin, and Magic Mushroom Dosage
by Erowid


PSILOCYBE CUBENSIS
Psilocybe cubensis is a medium strength psilocybian mushroom consisting of approximately .63% psilocybin and .60% psilocin in dried wild mushrooms. Indoor cultivated mushrooms tend to have higher concentrations. Note that potency of mushrooms can vary greatly from one batch to the next. The following chart shows approximate oral dosages for (dried) Psilocybe cubensis in grams.

Image by Slee
Oral P. cubensis Dosages
Threshold.25 g1/100 oz
Light.25 - 1 g1/100 - 1/28oz
Common1 - 2.5 g1/28 - 1/10oz
Strong2.5 - 5 g1/10 - 1/6oz
Heavy5 + g1/6oz +

Onset : 10 - 40 minutes (when chewed and held in mouth)
Onset : 20 - 60 minutes (when swallowed on empty stomach)
Duration : 2 - 6 hours
Normal After Effects : up to 8 hours




SEE ALSO
  • Comparative potency of selected Psilocybe mushrooms, Stamets 1996
  • Extraction and analysis of indole derivatives from fungal biomass, Gartz 1994


  • DOSAGE REFERENCES
    Psychedelics Encyclopedia, by Peter Stafford
    Psilocybin Mushrooms of the World, Paul Stamets

    Every individual reacts differently to every chemical.
    Know your Body - Know your Mind - Know your Substance - Know your Source.

    Erowid's dosage information is a summary of data gathered from users, research, and other
    resources and should not be construed as recommendations. Individuals can respond
    differently to the same dosage. What is safe for one can be deadly for another.