Psychedelic drug ayahuasca improves hard-to-treat depression

“The findings suggest a rapid antidepressant benefit for ayahuasca, at least for the short term,” says David Mischoulon of Massachusetts General Hospital in Boston. “But we need studies that follow patients for longer periods to see whether these effects are sustained.”

If the finding holds up in longer studies, it could provide a valuable new tool for helping people with treatment-resistant depression. An estimated 350 million people worldwide experience depression, and between a third to a half of them don’t improve when given standard antidepressants.

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