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These studies carefully exclude individuals at risk for developing psychotic symptoms in response to psychedelic use. Given the potential for psychedelics to be established as treatments in psychiatry, it is important to more robustly understand their link with psychosis and schizophrenia spectrum disorders (SSDs). In this narrative review, we examine the historical and theoretical relationship between psychedelic drugs and SSDs, including the origins of the psychotomimetic hypothesis. For key psychedelic compounds, we review their phenomenological manifestations in relation to the experiential alterations characteristic of SSDs, revealing both areas of overlap and important qualitative differences that challenge the uniform psychotomimetic classification. We also review putative neural mechanisms underlying altered experiential states associated with psychedelic use and SSDs, with attention to serotonergic, dopaminergic, and glutamatergic contributions. Clinical evidence demonstrates that psychedelics can exacerbate pre-existing psychotic illness and may trigger psychosis in vulnerable individuals, though the magnitude of these risks remains inadequately quantified. However, phenomenological and mechanistic distinctions suggest that potential therapeutic applications may exist for carefully selected symptoms (negative symptoms, depression) in stable patients using low-dose, controlled approaches. Based on published work, we provide recommendations regarding psychosis-related risk and potential avenues for the treatment of SSDs as psychedelics gain traction as therapeutics.<\/jats:p>","DOI":"10.1177\/02698811261456191","type":"journal-article","created":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T12:21:31Z","timestamp":1782390091000},"page":"1037-1053","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["The intersection between psychedelics and schizophrenia spectrum disorders: Reevaluating risk and therapeutic potential"],"prefix":"10.1177","volume":"40","author":[{"given":"Pavan S.","family":"Brar","sequence":"first","affiliation":[{"name":"Faculty of Psychology and Educational Sciences, Ghent University, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca B.","family":"Price","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, University of Pittsburgh, PA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen","family":"Ross","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, NYU Langone Center for Psychedelic Medicine, NYU Grossman School of Medicine, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Babak","family":"Tofighi","sequence":"additional","affiliation":[{"name":"Division of Social Solutions and Services Research, Nathan S. 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