SCN8A and epilepsy: Given that SUDEP has been reported in ~10% of patients with SCN8A epilepsy (although the adult phenotype is not well‐documented yet,3 and these patients have a high burden of GTCS,1, 3, 18 and typically have ictal respiratory impairment, with O2 desaturation with cyanosis3) fenfluramine may have important implications for lowering SUDEP risk in patients with SCN8A‐epilepsy.