see this article below which might help you in getting an idea
I generally recommend that most vitamins be stopped at least a week before surgery, unless they are being taken for specific medical conditions. Vitamin E, flax seed or fish oils, and ginkgo can increase risk of bleeding.
Please review all medications, vitamins and supplements with your provider in advance of surgery.
I hope that helps.
Generally if you are having general anesthesia we ask that you have nothing
by mouth 8-12 hours prior to your anesthesia. You may take certain
medications with limited amounts of water prior to the procedure. We would
generally recommend *you not take* B12, Probiotics or D Vitamins before
your procedure as they are not critical medications. If you are on certain
prescribed medications that you must take daily, we would recommend
checking with your doctor or anesthesiologist prior to your anesthesia to
see if they recommend taking that medication(s) prior to your procedure.
Unless otherwise noted we recommend you avoid taking Aspirin, Motrin or
Ibuprofen prior to your procedure as well.