A plant-derived alkaloid with a complex record
Ibogaine is a naturally occurring monoterpene indole alkaloid derived from the root bark of the Central West African rainforest shrub Tabernanthe iboga. The plant is associated with Bwiti spiritual and healing traditions in Gabon and neighboring regions, a context that should not be flattened into a commercial psychedelic narrative.
As a psychoactive hallucinogen, ibogaine is often described as an atypical psychedelic. It has attracted attention in addiction treatment because reports from people with substance use disorder describe abrupt changes in opioid withdrawal, craving, and autobiographical reflection. Those accounts are not the same thing as proof of safe or durable therapeutic benefit.
In the body, hepatic CYP2D6 enzymes convert ibogaine into noribogaine, an active metabolite and potent serotonin reuptake inhibitor that may remain detectable in plasma for weeks. That longer tail helps explain why a one-time flood dose can be followed by days of physical and psychological change.
Researchers are still clarifying the mechanism of action. Ibogaine interacts with NMDA receptors, kappa-opioid receptors, nicotinic acetylcholine receptors, the serotonin transporter, and systems involving dopamine. The National Center for Biotechnology Information overview of opioid use disorder is a useful reminder that substance use disorder is a chronic, multifactorial condition rather than a simple chemical switch.