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Psychedelic use and bipolar disorder - An investigation of recreational use and its impact on mental health.

Thomas D Meyer, Maya Ibrahim, Lauren N Vale, Jair C Soares

Journal of Affective Disorders March 15, 2025 DOI: 10.1016/j.jad.2024.12.044 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational cohort Randomized Peer reviewed
Population Individuals with bipolar disorder who used psychedelics recreationally
Duration Three-month follow-up
Keywords Psychedelic drugs Behavioral health care Depression research Bipolar disorder Mental health treatment Mood disorders Time-line follow back Psychedelics hallucinogens Entheogens Bipolar affective disorder Psychological intervention
Citations 6
Key findings Recreational psychedelic use in individuals with bipolar disorder was associated with reduced depressive symptoms and cannabis use, and more symptom-free days, without significant increases in manic, psychotic, or anxiety symptoms.

Abstract

Psychedelic substances such as psilocybin have recently gained attention for their potential therapeutic benefits in treating depression and other mental health problems. However, individuals with bipolar disorder (BD) have been excluded from most clinical trials due to concerns about manic switches or psychosis. This study aimed to systematically examine the effects of recreational psychedelic use in individuals with BD. Using the Timeline Followback (TLFB) method, we assessed mood symptoms, substance use, and other mental health-related variables in the month before and three months following participants' most recent psychedelic experience. Results showed a significant reduction in depressive symptoms and cannabis use, an increase in the number of days without mental health symptoms, and an increase in the number of days with hallucinogen use. Importantly, no significant changes in (hypo)manic, psychotic, or anxiety symptoms were observed. These findings suggest that psychedelics may hold potential as a safe and effective treatment for BD, though further research, including randomized controlled trials, is needed.