Dosage Erowid runs on the donations and memberships of visitors. Indoor cultivated mushrooms tend to have higher concentrations. Note that potency of mushrooms can vary greatly from one batch to the next. Psilocybe cubensis in grams. The following chart shows approximate oral dosages of psilocybin in mg.
Every individual reacts differently to every chemical.
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.