Answer:
Following are the list of herbal supplements that interact with warfarin : cranberry, fenugreek, ginkgo biloba, glucosamine, alfalfa, anise, bilberry, bladderwrack, bromelain, cat's claw, celery, chamomile, coleus, cordyceps, dong quai, evening primrose oil, fenugreek, feverfew, garlic, ginger, ginkgo biloba, ginseng (Panax), ginseng (Siberian), grapeseed, green tea, guggul, horse chestnut seed, horseradish, licorice, omega-3-acids, turmeric, prickly ash, red clover, reishi, SAMe (s-adenosylmethionine), sweet clover,and white willow. If the protein shakes that you intend to take contain any of the above, be aware that they can interact with warfarin and alter INR levels.