psilocybin; indocybin (magic mushroom)

From Aaushi
Jump to navigation Jump to search

Introduction

  • the major of 2 hallucinogenic components of Teonanaacatl, the sacred mushroom of Mexico
  • obtained from the fruiting bodies of Psilocyne mexicana & other species of Psylocybe & Stropharia
  • Psilocin is the minor component.

DEA schedule 1 drug.

Indications

* used for spirituality & synesthesias (seeing music, hearing art)[4]

Clinical manifestations

Dosage

  • 0.3 mg/kg, or ~ 21 mg/70 kg, 25 mg 3 weeks apart[4]
    • 0.215 mg/kg is effective[20]
  • 20 mg/70 kg & 30 mg/70 kg about 2 weeks apart[17]
  • single dose 25 mg[16][22]

Pharmacokinetics

  • alterations in perception generally begin within 30 minutes, but may be delayed up to 2 hours[9]
  • effects generally last 4-6 hours but may last up to 12 hours[9]
  • a single dose of 25 mg is associated with sustained improvement in symptoms of major depression in cancer patients over 8 weeks[21]

Adverse effects

* misidentification of mushrooms gathered in the wild (& sold on the street) is common leading to potentially fatal outcome[9]

* Toxicity:

Laboratory

Mechanism of action

* connectivity & blood flow determined by fMRI[4]

Notes

  • patients argue they have a legal right to take psilocybin through the Right to Try Act
  • in 2023, facilitated use of psilocybin will become legal in Oregon, Missouri & Colorado & several cities in the US[18][25]

More general terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.
  2. Merck Index, I2th ed, Merck & Co, Rahway NJ, 1996 # 8111
  3. 3.0 3.1 3.2 Anderson P Psilocybin May Be a Psychiatry Game Changer Medscape. Dec 01, 2016. http://www.medscape.com/viewarticle/872504
    Ross S, Bossis A, Guss J et al Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life- threatening cancer: a randomized controlled trial. J Psychopharmacol December 2016 vol. 30 no. 12 1165-1180 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/27909164 <Internet> http://jop.sagepub.com/content/30/12/1165.full
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Carhart-Harris RL, Roseman L, Bolstridge M et al. Psilocybin for treatment-resistant depression: fMRI-measured brain mechanisms. Sci Rep 2017 Oct 13; 7:13187. PMID: https://www.ncbi.nlm.nih.gov/pubmed/29030624 Free PMC Article
  5. 5.0 5.1 Brauser F FDA Permits Psilocybin to Be Tested for Refractory Depression. Medscape - Oct 30, 2018. https://www.medscape.com/viewarticle/904159
  6. 6.0 6.1 Davis AK, Barrett FS, May BG et al Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder. A Randomized Clinical Trial. JAMA Psychiatry. Published online November 4, 2020 PMID: https://www.ncbi.nlm.nih.gov/pubmed/33146667 https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2772630
    Reynolds III CF Psilocybin-Assisted Supportive Psychotherapy in the Treatment of Major Depression- Quo Vadis? JAMA Psychiatry. Published online November 4, 2020 PMID: https://www.ncbi.nlm.nih.gov/pubmed/33146675 https://jamanetwork.com/journals/jamapsychiatry/article-abstract/2772628
  7. 7.0 7.1 Carhart-Harris R, Giribaldi B, Watts R et al Trial of Psilocybin versus Escitalopram for Depression. N Engl J Med 2021; 384:1402-1411. April 15. PMID: https://www.ncbi.nlm.nih.gov/pubmed/33852780 https://www.nejm.org/doi/full/10.1056/NEJMoa2032994
    Lieberman JA Back to the Future - The Therapeutic Potential of Psychedelic Drugs. N Engl J Med 2021; 384:1460-1461. April 15. PMID: https://www.ncbi.nlm.nih.gov/pubmed/33852784 https://www.nejm.org/doi/full/10.1056/NEJMe2102835
  8. Lange R (Texas Tech), Tracey E (Johns Hopkins Medicine) Face Masks and Exercise; Dosing Psilocybin: It's TTHealthWatch! Also this week: COVID and inactivity, and inflammatory diets. Medpage Today April 17, 2021 https://www.medpagetoday.com/podcasts/healthwatch/92141
  9. 9.00 9.01 9.02 9.03 9.04 9.05 9.06 9.07 9.08 9.09 9.10 Sinert RO Fast Five Quiz: Psilocybin and Other Hallucinogenic Drugs. Medscape. September 07, 2021 https://reference.medscape.com/viewarticle/957547
  10. Rolston-Cregler L, Wiener SW Hallucinogenic Mushroom Toxicity Medscape. Jan 23, 2021 https://emedicine.medscape.com/article/817848-overview#showall
  11. Rolston-Cregler L, Wiener SW Hallucinogenic Mushroom Toxicity Workup Medscape. Jan 23, 2021 https://emedicine.medscape.com/article/817848-workup#showall
  12. Rolston-Cregler L, Wiener SW Hallucinogenic Mushroom Toxicity Treatment & Management. Medscape. Jan 23, 2021 https://emedicine.medscape.com/article/817848-treatment#showall
  13. 13.0 13.1 Grant K 'Magic Mushrooms' Get a Win for Depression in Early Trial, Drugmaker Says. Psilocybin reduced depressive symptoms in largest trial of psychedelic drug to date. MedPage Today November 10, 2021 https://www.medpagetoday.com/psychiatry/depression/95579
  14. 14.0 14.1 Melville NA Psilocybin Effective Up to 12 Weeks in Severe Depression. Medscape. June 2, 2022 https://www.medscape.com/viewarticle/974935
  15. 15.0 15.1 AMA Morning Report. August 25, 2022 American Medican Association
    Bogenschutz MP, Ross S, Bhatt S et al Percentage of Heavy Drinking Days Following Psilocybin-Assisted Psychotherapy vs Placebo in the Treatment of Adult Patients With Alcohol Use Disorder. A Randomized Clinical Trial. JAMA Psychiatry. Published online August 24, 2022 PMID: https://www.ncbi.nlm.nih.gov/pubmed/36001306 https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2795625
  16. 16.0 16.1 16.2 16.3 Goodwin GM, Aaronson ST, Alvarez O et al Single-Dose Psilocybin for a Treatment-Resistant Episode of Major Depression. N Engl J Med 2022; 387:1637-1648. Nov 3. PMID: https://www.ncbi.nlm.nih.gov/pubmed/36322843 https://www.nejm.org/doi/full/10.1056/NEJMoa2206443
  17. 17.0 17.1 17.2 Brooks M Psilocybin's Antidepressant Effects Rapid, Durable. Medscape. Feb 17, 2022 https://www.medscape.com/viewarticle/968771
    Gukasyan N, Davis AK, Barrett FS et al Efficacy and safety of psilocybin-assisted treatment for major depressive disorder: Prospective 12-month follow-up. J Psychopharmacol. 2022 Feb;36(2):151-158. PMID: https://www.ncbi.nlm.nih.gov/pubmed/35166158 PMCID: PMC8864328 Free PMC article
  18. 18.0 18.1 18.2 Cornelius K Cancer Patients Struggle to Access Psilocybin Before They Die. Medscape. December 13, 2022 https://www.medscape.com/viewarticle/985501
  19. 19.0 19.1 Osorio L Psilocybin 'Rewires' the Brain to Alleviate Depression. Medscape. April 11, 2022 https://www.medscape.com/viewarticle/971965
  20. 20.0 20.1 von Rotz R, Schindowski EM, Jungwirth J et al Single-dose psilocybin-assisted therapy in major depressive disorder: A placebo-controlled, double-blind, randomised clinical trial. eClinicalMedicine 2023. 56:101809. Feb 1. ePub December 28, 2022 https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(22)00538-7/fulltext
  21. 21.0 21.1 21.2 Agrawal M, Emanuel E, Richards B et al Assessment of Psilocybin Therapy for Patients With Cancer and Major Depression Disorder. JAMA Oncol. 2023;9(6):864-866. PMID: https://www.ncbi.nlm.nih.gov/pubmed/37052904 PMCID: PMC10102915 (available on 2024-04-13) https://jamanetwork.com/journals/jamaoncology/fullarticle/2803623
  22. 22.0 22.1 22.2 22.3 Raison CL, Sanacora G, Woolley J et al Single-Dose Psilocybin Treatment for Major Depressive Disorder. A Randomized Clinical Trial. JAMA. Published online August 31, 2023 PMID: https://www.ncbi.nlm.nih.gov/pubmed/37651119 https://jamanetwork.com/journals/jama/fullarticle/2808950
    Yehuda R, Lehrner A Psychedelic Therapy - A New Paradigm of Care for Mental Health. JAMA. 2023;330(9):813-814 PMID: https://www.ncbi.nlm.nih.gov/pubmed/37651148 https://jamanetwork.com/journals/jama/fullarticle/2808951
  23. 23.0 23.1 Aaronson ST, van der Vaart A, Miller T et al Single-Dose Synthetic Psilocybin With Psychotherapy for Treatment-Resistant Bipolar Type II Major Depressive Episodes. A Nonrandomized Controlled Trial. JAMA Psychiatry. Published online December 6, 2023 PMID: https://www.ncbi.nlm.nih.gov/pubmed/38055270 https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2812443
  24. 24.0 24.1 Metaxa AM, Clarke M Efficacy of psilocybin for treating symptoms of depression: systematic review and meta-analysis. BMJ. 2024 May 1:385:e078084 PMID: https://www.ncbi.nlm.nih.gov/pubmed/38692686 PMCID: PMC11062320 Free PMC article
  25. 25.0 25.1 Brown NA The Promise of 'Magic Mushrooms' for Mental Health Is Real. But more research and careful regulation is necessary. MedPage Today, August 3, 2024 https://www.medpagetoday.com/opinion/prescriptionsforabrokensystem/111361
  26. Wikipedia: Psilocybin decriminalization in the United States https://en.wikipedia.org/wiki/Psilocybin_decriminalization_in_the_United_States
  27. 27.0 27.1 Johnson K Psilocybin Bests SSRI for Major Depression in First Long-Term Comparison. Medscape. Sept 23, 2024 https://www.medscape.com/viewarticle/psilocybin-bests-ssri-major-depression-first-long-term-2024a1000h77

Database