Making psychedelics Schedule 1 set us back decades that could have been spent doing important research on a large number of mental health conditions.
Their most impressive work is in PTSD. In Phase 2 trials, they took people with established PTSD (for years) and undertook ~3 guided psychotherapy sessions with MDMA. Within 2 months, 53% no longer met criteria for PTSD and at 12 months 68% didn't.
Far more efficacious that anything else we have. Powerful tool for psychologic healing.
Hard to tell how effective the treatment is with nothing to compare to.
Psychedelics work at changing the mind and they work astonishingly well, provided their consumption accompanies skilled counseling.
https://link.springer.com/article/10.1007/s00213-019-05249-5