Nature Magazine reports that researchers from Imperial College London gave psilocybin to 12 people with depression. All the patients showed "a marked improvement in their symptoms."
From Nature:
Researchers from Imperial College London gave 12 people psilocybin, the active component in magic mushrooms. All had been clinically depressed for a significant amount of time — on average 17.8 years. None of the patients had responded to standard medications, such as selective serotonin re-uptake inhibitors (SSRIs), or had electroconvulsive therapy.
One week after receiving an oral dose of psilocybin, all patients experienced a marked improvement in their symptoms. Three months on, five patients were in complete remission.
"That is pretty remarkable in the context of currently available treatments," says Robin Carhart-Harris, a neuropsychopharmacologist at Imperial College London and first author of the latest study, which is published in The Lancet Psychiatry.
The equivalent remission rate for SSRIs is around 20%.