The FDA is considering approving MDMA alongside psychotherapy as a treatment for PTSD. But evidence of the drug’s effectiveness isn’t clear cut.
https://www.wired.com/story/mdma-approval-problems-fda-lykos-psychedelic-therapy-mental-health-ptsd/
https://www.wired.com/story/mdma-approval-problems-fda-lykos-psychedelic-therapy-mental-health-ptsd/