"MDMA-assisted psychotherapy with 75 mg or 125 mg resulted in marked improvement of PTSD symptoms in veterans and first responders with chronic PTSD who had failed previous treatment. This study extends findings of significant results combining MDMA with the same manualised psychotherapy for treating crime-related PTSD,12 and supports the durability of symptomatic improvement seen in a previous report.14"
Source
Michael C Mithoefer, MD, et al. 3,4-methylenedioxymethamphetamine (MDMA)-assisted psychotherapy for post-traumatic stress disorder in military veterans, firefighters, and police officers: a randomised, double-blind, dose-response, phase 2 clinical trial. The Lancet Psychiatry. May 1, 2018. DOI: doi.org/10.1016/S2215-0366(18)30135-4