Psilocybin lifts severe depression in clinical trial. "Two doses of psilocybin was sufficient to lift treatment-resistant depression in all 12 volunteers for three weeks, and to keep it away in five of them for three months". (2016)
Please note that it is an open-label feasibility study. No control group.
Full study here: http://www.thelancet.com/pb/assets/raw/Lancet/pdfs/S2215036616300657.pdf
Keep up the great work @honore
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