Does ibogaine actually work?

The honest one-paragraph version

Ibogaine is not a miracle and not a hoax. Its strongest, most consistent effect is interrupting opioid withdrawal and cravings after a single dose, which real prospective data supports.^[1] For post-traumatic stress and traumatic brain injury, a 2024 Stanford study of 30 veterans reported large symptom reductions, though it was open-label and uncontrolled.^[2] Beyond those, the evidence thins fast into case reports, then into pure testimonial, then into conditions with no research whatsoever. The word "work" hides all of that, which is why we grade every use separately.

What it works best for

Opioid use disorder is the one use with early human data behind it and the reason most people travel for treatment. Cohort studies report rapid relief of withdrawal and reduced cravings, with a minority sustaining long-term abstinence, especially with aftercare.^[1] This is graded strong-early: promising and human-tested, but small, mostly uncontrolled, and not a guaranteed cure.

What shows early promise

PTSD and TBI carry the same strong-early grade on the strength of the Stanford veteran study, which reported average reductions around 88 percent in PTSD symptoms at one month with no serious cardiac events under a magnesium protocol.^[2] The caveats are essential: 30 people, no placebo group, a specific veteran population, and reductions in depression and anxiety measured as secondary outcomes rather than in dedicated trials.

What the evidence does not support

Marketing frequently outruns the science. There is weak or anecdote-only evidence for alcohol, cocaine and methamphetamine; anecdote only for conditions like OCD, chronic pain and Parkinson's (where the "neuroregeneration" story comes from rodent studies, not human results^[3]); and effectively no evidence for ADHD, autism or long COVID. Our page on what ibogaine does not treat covers this in full, including the uses that are not just unproven but dangerous.