Comparison guide

Psilocybin or IV Ketamine for Grief

Neither psilocybin nor IV ketamine has proven prolonged-grief trials yet. Grief-focused talk therapy still leads the evidence.

Medically reviewedFrank Larson, M.D
Last updatedJuly 2026
Comparison of psilocybin or IV Ketamine for grief

Answers at a glance

Comprehensive comparison

Psilocybin
Unknown for prolonged grief — no finished large trial sets a timeline.1
IV Ketamine
Unknown. Only a single published case report describes one person’s experience.3
References & sources4 peer-reviewed
  • 1Beesley et al. (2024). Psychedelics for prolonged grief — no finished large trials yet. View study →
  • 2PARTING protocol (2025). Early psilocybin pilot for grief after cancer loss. View study →
  • 3Gowda et al. (2016). Ketamine for grief — single published case report. View study →
  • 4Review pointing to grief-focused talk therapy for prolonged grief. View study →
  • 5Oregon Health Authority. Accessing psilocybin services. View study →
  • 6Indicative US IV ketamine cash-price ranges. View study →

Typical US ranges and outcomes; your care depends on screening and clinical need. Not medical advice.

Considerations

Every path has a trade

Psilocybin

What you gain

A structured, supported experience some bereaved people seek.

What it asks of you

Self-pay and experimental evidence for prolonged grief.

IV Ketamine

What you gain

Rapid clinic access if depression is also present.

What it asks of you

No grief protocol and almost no direct evidence.