Ibogaine vs. psilocybin for addiction — what the evidence actually says
43 replies · Therapy & Integration
Both get mentioned as addiction treatments but they seem very different. Can someone explain the actual difference in mechanism, evidence, and who each is better for? I'm looking at options for alcohol use disorder specifically.
Psilocybin for alcohol: the Johns Hopkins/NYU data shows 83% of participants showing significant reduction or abstinence at 32-week follow-up. The mechanism appears to be the mystical experience producing a shift in identity and relationship to alcohol — people stop identifying as a drinker. It's relatively safe physiologically, legal in Oregon and Colorado, and accessible. For alcohol specifically, psilocybin has the strongest clinical evidence base.
Ibogaine for addiction: the evidence is strongest for opioid dependence specifically, particularly withdrawal interruption. Single sessions produce dramatic, immediate reduction in withdrawal symptoms and extended abstinence periods in a majority of patients — results that no other single-session intervention comes close to for opioid withdrawal. The mechanism is different: ibogaine works on opioid and NMDA receptors directly, not primarily through the serotonin system. But: ibogaine carries real cardiac risk (QT prolongation, fatal arrhythmia). This is not a physiologically safe substance in the way psilocybin is. It requires medical screening and monitoring.
For your specific situation (alcohol use disorder): psilocybin is the evidence-based choice. The data is better, the safety profile is dramatically better, and it's legally accessible. Ibogaine for alcohol is less well-studied and more dangerous than necessary for an indication where psilocybin has excellent data. Save ibogaine consideration for opioid dependence where the evidence is uniquely strong.
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