Ibogaine and its metabolite, noribogaine, cause cardiotoxicity. What do they cause?
Both ibogaine and its metabolite, noribogaine, cause QT prolongation and subsequent ventricular arrhythmias including torsade de pointes likely due to blockade of the HERG channel. (Litjens R et al. How toxic is ibogaine?Clin Tox 2016; 54(4): 297-302. doi:doi.org/10.3109/15563650.2016.1138226)