Serotonergic psychedelics are re-emerging as therapeutic candidates across psychiatry, particularly for treatment-resistant depression. Their rapid and sustained antidepressant effects, alongside evidence for neuroplastic, dopaminergic, and glutamatergic modulation, have prompted interest in whether they could address depressive and negative symptoms in schizophrenia spectrum disorders (SSDs)....
Posttraumatic stress disorder (PTSD) is a chronic and disabling condition and identifying beneficial therapies is timely and important. We aimed to estimate the efficacy of 3,4-methylenedioxymethamphetamine-assisted therapy (MDMA-AT) compared with control on clinical and functional outcomes in PTSD. A PRISMA-compliant search (PROSPEROCRD42022353261) up to August 14, 2025, covered nine databases...
Persons with schizophrenia are excluded from psychedelic-assisted therapy due to concerns about the risk of triggering or worsening psychosis. However, there is limited meta-analytic data on the risk of psychedelic-induced psychosis in individuals with pre-existing psychotic disorders. We conducted a systematic review, meta-analysis, and overview of reviews to assess the incidence of...