World Psychiatry
June 1, 2026
Christina Chwyl, Michael S. Ladka, Joshua C. Black et al.
Prevalence and predictors of sexual and physical violence during psychedelic use in a US population-based study.
Journal of Medical Internet Research
April 27, 2026
Karilynn M Rockhill, Elizabeth A Bemis, Nicole Schow et al.
2 citations
Mainstays of pharmacoepidemiology are large, representative, behavioral surveys, which focus on many drugs with few detailed behaviors. Smaller, targeted studies measure drug-specific patterns but without explicit generalizability assumptions; the evidence generated is narrow. In this cross-sectional survey study, we outline an estimation framework based on data fusion and combine two surveys:...
Journal of Psychoactive Drugs
March 16, 2026
Faith E Lyons, Karilynn M Rockhill, Evelyn J Fox et al.
Expanding regulation and increased use of psychedelic substances requires surveillance of behaviors and health outcomes in the United States. Widely comprehendible terminology is important for surveys. The objective of this study was to determine what psychedelic terminology is preferred among adults who used a psychedelic in the past 12 months. A cross-sectional survey measuring psychedelic...
JAMA
March 12, 2026
Joshua C. Black, Gabrielle E. Bau, Ryan Cook et al.
2 citations
This survey study examines the estimated increase in 12-month psilocybin use in Oregon and Colorado associated with decriminalization.
Journal of Addiction Medicine
January 15, 2026
Dale Terasaki, Nathan Sackett, Andrew A. Monte
The psychedelic substance, ibogaine, has garnered growing interest among policymakers, researchers, and the public in its potential use for opioid use disorder (OUD). Many states are allocating significant funds to investigate it further. However, some proponents of ibogaine are framing it in opposition to (versus complementary to) standard, mortality-reducing medications for OUD (MOUD)....
Annals of emergency medicine
June 30, 2025
Joshua C. Black, Karilynn M Rockhill, Evelyn J Fox et al.
4 citations
Oregon and Colorado have legalized possession of natural psychedelic drugs. We assessed if travel to use psychedelics in decriminalized states is occurring and compared the use patterns of travelers with nontravelers. The National Survey Investigating Hallucinogen Trends is a cross-sectional behavioral survey fielded from April to June 2024 to every US state. The survey asks whether individuals...
International Journal of Mental Health and Addiction
April 1, 2025
Joshua C. Black, Nicole Schow, Hannah L. Burkett et al.
3 citations
Psychedelic-assisted therapy could transform treating psychiatric illness, but harms from exacerbating substance use disorder (SUD) among adults with psychiatric illness using psychedelics have not been studied. A cross-sectional survey in the US was used to test whether Drug Abuse Screening Test scores (DAST-10, validated instrument predicting SUD) were more severe when psychiatric illnesses...
Annals of emergency medicine
December 1, 2024
Mark W Simon, Heather A Olsen, Christopher O Hoyte et al.
12 citations
Psychedelic substances use is increasing in the United States (US). The approval of new psychedelic drugs and legalization of natural psychedelic substances will likely further increase exposures and subsequent adverse events. The study objective is to describe the clinical effects, therapies, and medical outcomes of patients with psychedelic exposures reported to US poison centers. We...
Addiction
June 17, 2024
P. Todd Korthuis, Adrianne R Wilson-Poe, Joshua C. Black et al.
1 citation
As psychedelic use expands, the number of adverse effects will increase proportionally. New frameworks for monitoring safety outcomes on a population level are required to limit potential harms. Darke et al. characterized 33 lysergic acid diethylamide (LSD) and 10 psilocybin-related deaths in Australia between 2000 and 2023 using the country's sophisticated national coroner data system....
Nature Mental Health
May 1, 2024
Joshua C. Black, Andrew A. Monte, Nabarun Dasgupta et al.
5 citations
The encouraging results of late-phase clinical trials investigating psychedelic-assisted psychotherapy suggests that US Food and Drug Administration approval and subsequent expansion of use is imminent in the USA. Without fit-for-purpose postmarket surveillance to proactively monitor utilization by patients and providers, there is a risk that the real-world benefits of psychedelic-assisted...
Substance Use & Misuse
June 7, 2018
Jacob Fox, Alexis Smith, Alexander Yale et al.
Drugs of abuse (DOA) are widely used in the United States and are ubiquitous at outdoor music festivals. Attendees at music festivals are at high-risk for novel psychoactive substance (NPS) use, which is becoming more prevalent worldwide. No U.S. studies have employed an qualitative approach to investigate the etiologies of both traditional DOA and NPS use amongst music festival attendees. The...