Rhythm changes need urgent attention.
Ibogaine exposure can be followed by symptoms that may suggest a heart-rhythm problem: a racing, pounding, fluttering, or irregular heartbeat; chest pain; marked dizziness; fainting; or sudden shortness of breath. These signs can appear during the acute period or later while the person is still recovering, and they should not be explained away as ordinary fatigue or anxiety.
Cardiac risk is especially important to take seriously when there is a history of fainting, known heart disease, a family history of sudden cardiac death, or use of medicines and substances that can affect heart rhythm. The National Heart, Lung, and Blood Institute’s overview of arrhythmias notes that rhythm disturbances can cause palpitations, dizziness, fainting, chest discomfort, and breathlessness.
Call emergency services now for chest pain, collapse, a sustained irregular heartbeat sensation, severe breathlessness, or a person who cannot stay awake. If urgent care is reached, bring the complete medication and substance list, the approximate ibogaine dose and timing, known cardiac history, and any account of when symptoms started. A broader week-by-week aftercare overview for men can help organise routine observation, but it is not a substitute for emergency assessment.