A case report does describe a rise in INR to greater than 10 with accompanying epistaxis in a woman consuming dietary ginger. The woman ate ginger regularly in the form of dried ginger pieces and tea from ginger powder several weeks after her INR had been stabilised on phenprocoumon. This combination was possibly the cause of the high INR. Once the woman stopped consuming ginger, her INR restabilised on the original dose of phenprocoumon. A similar case resulting in bleeding has been reported in a woman on warfarin.