grapefruit warfarin

Can You Eat Grapefruit If You’re Taking Warfarin? Grapefruit. Grapefruit has the potential to interact with warfarin by inhibiting its metabolism. Warfarin contains two racemic mixtures, S-enantiomers and R-enantiomers. Does grapefruit affect INR? There was no significant change in prothrombin time or INR values, and the authors concluded that grapefruit juice did not affect warfarin