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On the Relationship between Classic Psychedelics and Suicidality: A Systematic Review
Richard J Zeifman1, Nikhita Singhal2, Leah Breslow3
1Department of Psychology, Ryerson University, Toronto, Ontario M5B 2K3, Canada.
ACS Pharmacology & Translational Science
|April 16, 2021
Summary
Classic psychedelic use shows mixed associations with suicidality. Psychedelic therapy may decrease suicidality, with recent trials showing no increased risk and preliminary evidence of reduction.
Area of Science:
- Neuroscience
- Psychiatry
- Mental Health Interventions
Background:
- Classic psychedelic use (e.g., psilocybin, ayahuasca, LSD) is rising.
- Psychedelic therapy is emerging as a novel mental health treatment.
- Suicidality is a concern in mental health and a potential safety issue with psychedelics.
Purpose of the Study:
- To systematically review the relationship between classic psychedelics and suicidality.
- To examine associations in both non-clinical use and psychedelic therapy contexts.
- To clarify the complex interplay between psychedelic substances and suicidal ideation/behavior.
Main Methods:
- Systematic literature review.
- Analysis of 64 articles (41 on non-clinical use, 23 on therapy).
- Synthesis of findings on associations and reported outcomes.
Main Results:
- Non-clinical classic psychedelic use showed mixed associations with suicidality (positive, negative, none).
- Some reports of suicide and decreased suicidality linked to non-clinical use.
- Early psychedelic therapy had some suicide reports (causality unclear); recent trials show no increased suicidality and suggest reductions.
Conclusions:
- The relationship between classic psychedelics and suicidality is complex and warrants further investigation.
- Current evidence suggests psychedelic therapy may offer benefits for suicidality.
- Future research is needed to fully understand these associations and optimize safety.
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