The Therapeutic Potential of Psilocybin

Psychedelic effects of plants and fungi have been known for millennia, with mushrooms being a primary natural source of psilocybin, historically used in religious ceremonies and for treating neuropsychiatric conditions. Psychedelics became stigmatized due to their association with the 1960s counterculture movement, leading to a 1970 U.S. Schedule 1 classification that halted scientific research. This prohibition delayed medical knowledge of therapeutic uses. A 2004 pilot study at UCLA on psilocybin for advanced-stage cancer patients revived interest, sparking renewed research into psilocybin's chemical properties and therapeutic potential for neuropsychiatric conditions. This review examines recent advances and current research, but is not systematic.

Study at a glance

Abstract

The psychedelic effects of some plants and fungi have been known and deliberately exploited by humans for thousands of years. Fungi, particularly mushrooms, are the principal source of naturally occurring psychedelics. The mushroom extract, psilocybin has historically been used as a psychedelic agent for religious and spiritual ceremonies, as well as a therapeutic option for neuropsychiatric conditions. Psychedelic use was largely associated with the “hippie” counterculture movement, which, in turn, resulted in a growing, and still lingering, negative stigmatization for psychedelics. As a result, in 1970, the U.S. government rescheduled psychedelics as Schedule 1 drugs, ultimately ending scientific research on psychedelics. This prohibition on psychedelic drug research significantly delayed advances in medical knowledge on the therapeutic uses of agents such as psilocybin. A 2004 pilot study from the University of California, Los Angeles, exploring the potential of psilocybin treatment in patients with advanced-stage cancer managed to reignite interest and significantly renewed efforts in psilocybin research, heralding a new age in exploration for psychedelic therapy. Since then, significant advances have been made in characterizing the chemical properties of psilocybin as well as its therapeutic uses. This review will explore the potential of psilocybin in the treatment of neuropsychiatry-related conditions, examining recent advances as well as current research. This is not a systematic review.