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What does ibogaine do and what is it used for?

Preliminary evidence

Ibogaine shows preliminary positive signals in opioid addiction, but the safety risks (including fatal cardiac arrhythmias) are real and well documented. Use is only justifiable under strict medical supervision, and in many countries the substance is not legal.

Ibogaine is the primary active compound of the West African iboga plant. The substance causes intense hallucinations and has been used for centuries by the Bwiti and Mbiri tribes in religious ceremonies. In modern science, interest has been driven mainly by its potential effect on addiction.

The most researched application is in opioid addiction. Open-label studies and one randomised controlled trial show that a single dose of ibogaine can reduce opioid craving by 50% or more, and that this effect persists for up to 24 weeks. In a case series of 33 patients, withdrawal symptoms disappeared within 24 hours in 25 of them. That sounds promising, but only one double-blind placebo-controlled trial is available to date, which means the evidence base is still narrow.

Animal research also shows reduced use of cocaine, amphetamines and nicotine following ibogaine, but whether this effect occurs in humans has not been demonstrated. One small observational study without a control group in 30 military veterans with traumatic brain injury reported that the majority experienced less PTSD, depression and anxiety one month after treatment. These are preliminary findings that cannot yet be generalised to broader populations.

The safety risks are serious and well documented. Ibogaine prolongs the QT interval in the heart, which can lead to fatal cardiac arrhythmias. Deaths from cardiac arrest have been reported even in clinical studies. At higher doses the substance is also toxic to nerve cells. Temporary side effects such as balance disturbances, tremors and gastrointestinal complaints occur regularly; mania or psychosis are rarer but more serious. Patients using long-acting opioids must have fully tapered off before ibogaine can even be considered, due to dangerous interactions. Preliminary research suggests that magnesium may partly reduce the cardiac risks, but this has not yet been studied sufficiently.

Because ibogaine acts through multiple brain systems simultaneously, its exact mechanism of action has not yet been fully elucidated. Researchers are working on less risky chemical variants with comparable effects, but clinical trials with these compounds are still largely yet to begin. In many countries, including the Netherlands, ibogaine is a controlled substance. Use outside of medical supervision carries a real and serious risk to life.

The evidence
6 studies · 1 systematic review · ≈ 63 participants

Evidence is based on reviews, a systematic review, one randomised controlled trial and observational research. No meta-analyses are available. The total number of participants across the human studies is small; exact numbers are limitedly reported in the source.

Last checked: September 2026 · how this was judged
Related answers

What are the differences between ibogaine and psilocybin as treatments?

Psilocybin has more clinical evidence and a more favorable safety profile than ibogaine; ibogaine carries a real risk of serious cardiac arrhythmias and has barely been tested in controlled research for most applications. If you are considering trying either substance, always discuss it with a doctor first, especially if you have heart problems or other health conditions.

Preliminary evidence

Is berberine safe if you are taking medication?

Berberine inhibits liver enzymes that break down many medications, which can cause blood levels to shift. Do not combine it with medications without thought: always discuss it with your doctor or pharmacist, particularly if you are taking antidepressants, beta-blockers, statins, or blood pressure-lowering medications.

Moderate evidence

How much berberine do you need per day?

For blood sugar control in type 2 diabetes, berberine works best at a daily dose of 500 to 2000 mg, spread throughout the day; going above 2 grams causes the effect to diminish rather than increase.

Yes · Moderate evidence

What are peptides and how do they work in the body?

Peptides are small protein fragments with a wide range of functions in the body, from hormones to defence substances. As a supplement, collagen peptides have the strongest evidence base, particularly for joint pain in active people, but do not expect miracles: the effects are modest and not everyone benefits.

Yes · Moderate evidence

What do we really know about metformin and ageing?

Metformin may extend your healthy years by helping to prevent disease, from diabetes to heart and vascular disease. Whether it also slows ageing itself in people without diabetes is for the TAME trial to show, the first large study to test that directly. If you are considering it for that reason, expect stomach and bowel complaints and a falling folate level.

Preliminary evidence

Does ergothioneine work as a longevity supplement?

Ergothioneine shows a positive signal in a small study of older adults with memory complaints, but it is too early for firm recommendations. Eating mushrooms is a risk-free way to obtain the compound; a supplement is worth considering only once larger studies provide greater clarity.

Preliminary evidence
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