DOCUMENTED CASES
The following collection brings together published medical and forensic case reports documenting self-harm, suicidal thoughts, suicide attempts, and fatalities occurring during or following psilocybin use.
While these reports do not establish that psilocybin directly caused every outcome, they highlight serious adverse events that deserve further scientific investigation, public awareness, and open discussion.
Our purpose is not to create fear, but to encourage informed choice through access to documented evidence.
Every case represents a human life, not just a statistic.
CONTENT ADVISORY
This page contains references to suicide, self-harm, and serious psychological distress.
The information is presented for educational and public awareness purposes, with links to published scientific research.
Readers are encouraged to approach these accounts with care.
CASE SUMMARY & SOURCE
CASE / PUBLICATION
Fatal Self-Harm Under Psilocybin Intoxication
1
A published forensic case report examining a fatal incident involving psilocybin intoxication and self-inflicted injuries. The study raises important questions about the relationship between psychedelic intoxication, behaviour, suicidal intent, and the classification of death.
The authors also examine the difficulty of determining manner of death when evidence of prior suicidal intent is absent.
Source: Labonté, C. & Walker, A. E. (2026), Academic Forensic Pathology
Suicide Attempt Following Psilocybin Ingestion
2
A published case report describing a 30-year-old man who survived serious self-inflicted injuries following psilocybin ingestion. The case highlights concerns about acute psychological reactions and the potential for dangerous behaviour during psychedelic intoxication.
Source: Psychiatry Research Case Reports (2023)
Suicide Under The Influence Of Magic Mushrooms
3
A published German forensic case report documenting a death involving self-inflicted injuries following the consumption of psychoactive mushrooms. The authors examined the possible relationship between psychedelic intoxication, altered behaviour, and the circumstances surrounding the death.
Source: Archiv für Kriminologie (2013)
Suicide Following Psilocybin-Assisted Therapy
4
A published case report describing the death of a 60-year-old man with a history of recurrent depression and delusions following psilocybin-assisted treatment. The authors examined whether psychological effects associated with the treatment may have contributed to the outcome. The report highlights the importance of careful patient assessment, monitoring, and follow-up.
Source: Psychiatry Research (2025)
Verified publication: Müller, F., et al. (2025), Psychiatry Research, Volume 345, Article 116381
Worsening Suicidal Thoughts Following
Psilocybin Treatment
5
A published case report documenting a participant in a clinical trial for treatment-resistant depression who experienced increased suicidal thoughts, severely restricted eating, and prolonged psychological difficulties following psilocybin administration. Despite these adverse effects, the participant later reported meaningful personal benefits. The case highlights the importance of recognizing and monitoring adverse reactions that may continue beyond the immediate effects of psilocybin.
Source: Wahba, M., et al. (2024), BJPsych Open
Fatal Self-Inflicted Injury Following Psilocybin Ingestion
6
A 2025 medical case report documenting the death of an individual following severe self-inflicted injuries after consuming psilocybin mushrooms. The case required emergency ophthalmological and neurosurgical care. The authors highlighted the potential for catastrophic physical harm associated with psychedelic intoxication. The report does not establish suicidal intent.
Source: Blanton, A. M., et al. (2025), American Journal of Ophthalmology Case Reports, Volume 39, Article 102359
Psilocybin-Associated Psychosis & Suicidal Ideation
7
A published case report describing a 37-year-old man who developed psychosis and worsening suicidal thoughts following several months of frequent, high-dose psilocybin use. The individual had pre-existing psychiatric risk factors and required multiple hospitalizations. The report highlights the importance of understanding psychological vulnerabilities and the potential risks associated with repeated psilocybin exposure.
Source: Morris, S. L. (2024), Clinical Psychopharmacology and Neuroscience, 22(4), 684–687
Prolonged Psychological Distress & Suicidal Thoughts Following Psilocybin Use
8
A published case report describing a 71-year-old female psychologist with no prior psychiatric history who developed severe insomnia, anxiety, depression, and suicidal thoughts following repeated high-dose psilocybin use during an unregulated psychedelic therapy training program. Her symptoms persisted for months and required psychiatric hospitalization. She subsequently improved following treatment.
Source: Perna, J., et al. (2025), BMC Psychiatry, 25, Article 184
Serious Suicide Attempt Following Frequent Psilocybin Use
9
A published case series examining three individuals who experienced significant psychiatric complications associated with psilocybin use. One case involved frequent psilocybin consumption followed by increasing paranoia and a medically serious suicide attempt. The individual required psychiatric treatment. The authors highlighted the varied psychological complications associated with psilocybin use and the limited clinical guidance available for managing these reactions.
Source: Psychiatry Research Case Reports (2025), Volume 4, Issue 1, Article 100243
ADDITIONAL SCIENTIFIC RESEARCH
Safety and Mental Health Outcomes of Oregon State-Regulated Psilocybin Services
1
Researchers followed 346 adults receiving psilocybin at licensed facilities in Oregon.
Four participants experienced serious adverse reactions requiring medical attention. Two of those individuals subsequently reported new thoughts of death, suicide, or self-harm alongside worsening psychological symptoms.
Across the broader study, six of 312 participants (1.9%) reported new thoughts of dying or suicide at the three-month follow-up.
Although serious adverse reactions were uncommon, the findings demonstrate the importance of monitoring psychological safety. Most participants reported improvements in mental health and well-being. Because this was an observational study, the findings do not establish that psilocybin caused either the benefits or adverse outcomes.
Source: JAMA Network Open, August 19, 2026
Psychedelics and Suicidality: A Double-Edged Sword — Risks, Mechanisms, and Moving Forward
2
This review examines how psychedelics, including psilocybin, may reduce suicidal thoughts in some circumstances while potentially contributing to psychological destabilization in others.
The authors discuss several proposed mechanisms, including altered perceptions of death, changes in judgment, and intense psychological distress.
They emphasize that reported suicide-related harms are rare, causation remains unestablished, and further research is necessary. The proposed mechanisms are hypotheses rather than proven explanations.
Source: European Neuropsychopharmacology, Maia Mallevays and Lucie Berkovitch, September 19, 2026