Cardiac arrest after ibogaine intoxication

This case study (n=1) documents the cardiotoxicity of the highest survived dose of ibogaine (4.55‐4.9g/70kg) ingested by a 61-year-old man in the context of seeking alternative treatment to overcome a long-standing opioid dependency related to chronic pain. Ibogaine increased heart rate and prolonged the time to recharge heart muscles between beats, and it took 7 days for the patient’s heart rhythm to normalize due to the long plasma half-life of the substance. Ibogaine intoxication is therefore a potentially life-threatening scenario due to the cardiotoxic risk of ventricular arrhythmia and requires prolonged cardiac monitoring within a critical care unit.


Introduction: Ibogaine is a psychoactive herbal medication with alleged antiaddiction properties.

Method: We report a case of ibogaine intoxication mimicking Long‐QT syndrome resulting in ventricular flutter and nearby cardiac arrest.

Result: A 61‐year‐old man experienced massive QT prolongation and ventricular flutter at a rate of 270 beats per minute requiring defibrillation after ingestion of a large dose of Ibogaine. The ingested dose of 65‐70 mg/kg represents the highest survived ibogaine dose reported to date. As a result of the long plasma half‐life of ibogaine, it took 7 days for the patient’s QT interval to normalize.”

Authors: Christian Steinberg & Marc W. Deyell

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Cardiac arrest after ibogaine intoxication

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Published in
Journal of Arrhythmia
June 12, 2018
2 citations

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