A narrative review of the pharmacological, cultural and psychological literature on ibogaine
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing pharmacological, cultural, and psychological literature without systematic methodology.
OpenAlex W3137986470 · doi:10.1556/2054.2021.00152
What was done
The authors conducted a narrative review of the pharmacological, cultural, and psychological literature on ibogaine (an alkaloid from Tabernanthe iboga). The review focused on mechanisms contributing to its reported efficacy in substance use disorders—especially opioid use disorder—and analyzed theories regarding the altered state of consciousness it induces.
What was found
The abstract reports no quantitative values or empirical effect sizes. Qualitatively, ibogaine's precise pharmacological mechanisms remain speculative, though literature emphasizes its role as an NMDA receptor antagonist. Psychologically, the theory that ibogaine induces a state resembling REM sleep was identified as questionable given evidence that it suppresses REM sleep and has contradictory links to learning and memory. Classifying the experience as oneirophrenic was noted to only capture its first phase, whereas the overall profile shares characteristics consistent with holotropic states of consciousness.
Why it matters
As ibogaine continues to be explored as an experimental therapy for substance dependence, establishing precise psychological and pharmacological frameworks helps clarify its complex experiential phases and mechanisms for future clinical research.
Limits
As a narrative review, the synthesis lacks systematic search criteria, quality appraisal, and risk-of-bias assessment. No quantitative data or sample sizes are reported in the abstract, and the underlying evidence base remains preliminary, speculative, and reliant on heterogeneous traditional and Western contexts.
Cited by
- supports Ibogaine has an established traditional use originating in West Africa and the Gabon region.