A careful assessment begins with uncertainty, not eligibility. A centre should ask about medical history, current symptoms, past cardiac events, fainting, seizures, liver disease, pregnancy status, psychiatric history, substance use, and every prescribed, over-the-counter, and non-prescribed drug. This page’s broader stage-by-stage safety framework is useful only when those questions lead to an actual decision path rather than a generic intake conversation.
Cardiac risk deserves particular attention because ibogaine and its metabolites have been associated with changes to cardiac electrical activity. The U.S. Food and Drug Administration describes a prolonged QT interval as a finding that can raise the risk of dangerous rhythm disturbances; its discussion of QT prolongation and abnormal heart rhythms illustrates why medication review and an ECG cannot be treated as administrative details.
Screening should distinguish a stated history from records that can be checked. A responsible process explains which findings may make participation unsafe, which require outside clinical evaluation, and which circumstances call for postponement. It should not imply that a short questionnaire can establish safety.