and vitamin E (400 IU synthetic α-tocopheryl every second day) supplementation in 14,641 male physicians. After a mean follow-up of 8 years, neither vitamin was seen to affect the risk or ...

[62] Vitamin E up to 400 units/day does not appear to affect prothrombin time in patients receiving warfarin. Although higher dosages appeared to be safe in the study by Kim and White, [65] some ...