“Conclusions: There is an additive inhibitory effect on HERG current when naringenin is combined with IKr-blocking antiarrhythmic drugs.”
“ Naringenin blocked HERG current dose dependently with an IC50 of 173.3 ± 3.1 µM. Naringenin 100 µM alone inhibited HERG current by 31 ± 6%, and this inhibitory effect was increased with coadministration of 1 or 10 µM antiarrhythmic drugs.”
“When 100 µM naringenin was added to antiarrhythmic drugs , greater HERG inhibition was demonstrated, compared to the current inhibition caused by antiarrhythmic drugs alone.”