Psilocybin · Depression
Single-dose psilocybin therapy for major depressive disorder
Davis, A. K., Barrett, F. S., May, D. G., et al.
JAMA Psychiatry · 78(5) · 2021 · doi:10.1001/jamapsychiatry.2020.3285
71% of participants showed clinically significant response at week 4. 54% met criteria for remission from depression. Sustained at follow-up.
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Ayahuasca · Trauma
Long-term effects of ayahuasca on PTSD: A four-year follow-up
Bouso, J. C., Palhano-Fontes, F., et al. · Beckley/ICEERS Program
European Neuropsychopharmacology · 31 · 2020 · doi:10.1016/j.euroneuro.2019.12.110
Symptoms of anxiety, depression, and PTSD in regular ayahuasca users showed sustained reductions across the full 4-year observational window.
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Psilocybin · End-of-life
Rapid and sustained symptom reduction following psilocybin in cancer-related distress
Griffiths, R. R., Johnson, M. W., Carducci, M. A., et al.
Journal of Psychopharmacology · 30(12) · 2016 · doi:10.1177/0269881116675513
Single high-dose session produced clinically significant decreases in depression and anxiety in ~80% of patients with life-threatening cancer. Effects persisted at 6-month follow-up.
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Mescaline · Wellbeing
Mescaline use in naturalistic settings: a global retrospective survey
Agin-Liebes, G., Haas, T. F., et al.
Journal of Psychoactive Drugs · 53(4) · 2021 · doi:10.1080/02791072.2021.1882684
Among 452 respondents, significant improvements reported across depression, anxiety, alcohol use disorder, and drug use disorder following ceremonial mescaline use.
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Integration · Outcomes
The role of post-session integration in long-term outcomes of psilocybin-assisted therapy
Garcia-Romeu, A., Davis, A. K., et al.
Frontiers in Psychiatry · 11 · 2020 · doi:10.3389/fpsyt.2020.00604
Structured integration sessions doubled the durability of effects at 12-month follow-up compared to ceremony-only protocols.
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Ceremonial · Set and Setting
Group context, lineage, and the durability of mystical experience in plant medicine retreats
Kaelen, M., Giribaldi, B., Raine, J., et al.
Frontiers in Pharmacology · 12 · 2021 · doi:10.3389/fphar.2021.693595
Cohort-based retreats with indigenous-trained facilitators showed significantly higher integration outcomes than clinical settings, particularly in measures of meaning and connectedness.
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