August 28, 2025 – Developed by RMPDS, NSIHT is the largest and most rigorous ongoing survey of adult psychedelic use in the nation. Fielded twice annually across all 50 states and Washington, D.C., NSIHT captures nationally representative data on 17 psychedelic substances—both pharmaceutical and recreational—using validated methods used by various federal agencies.
This report reveals:
- Who is using psychedelics, and how usage patterns vary across the population
- Differences between pharmaceutical and recreational use
- Trends in frequency, intent, setting of use, concomitant use, and self-perceived effectiveness
Why this matters:
Psychedelic use is moving from the fringe to mainstream, with legalization efforts, pharmaceutical development, and public interest accelerating. Policy, regulation, and funding decisions must be guided by credible, national evidence—and NSIHT is the gold standard for delivering it.
Download the report now to access actionable insights that can shape:
- Federal and state policy frameworks
- Public health and harm reduction strategies
- Clinical guidelines and research funding priorities