I've mentioned this several years ago on this particular topic.
Naringin is a weak inhibitor of selective isoenzymes, such as CYP34A/2D9/2D6. There's some interplay between Naringin and P-glycoprotein metabolism. That's a topic in itself. The active component responsible in GFJ (grapefruit juice) is Furanocoumarins/Bergapten. These two are more of a potent inhibitor of CYP3A4, more so than Naringin. That's if we're discussing GFJ.
As for as Narginin effects on lowering one's HH. I wouldn't waste my time, effort or money.