Psilocybin trends in states that decriminalized use

JAMA

2026-03-12

(Press-News.org) About The Study: This study estimated the increase in 12-month psilocybin use in Oregon and Colorado associated with decriminalization.

Corresponding Author: To contact the corresponding author, Joshua C. Black, PhD, email joshua.black@rmpds.org.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jama.2026.1952)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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Psilocybin trends in states that decriminalized use

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