Vitamin A and Vitamin D
Cod liver oil contains large doses of
vitamin A and vitamin D -- much more than in most vitamins or supplements -- and it's enough to cause toxicity in some people. Taking additional vitamin A or vitamin D along with cod liver oil increases the risk of toxicity due to these vitamins.
Warfarin (Coumadin, Jantoven)
Warfarin may interact with cod liver oil, possibly increasing your risk of bleeding. However, the significance of this interaction is not yet known. Check with your healthcare provider before taking these two things together.
It is possible that not every drug interaction was discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about the cod liver oil drug interactions that may apply to you.