Warfarin, acenocoumarol and phenindione block the effects of vitamin K which is needed to make some clotting factors described earlier. Blocking vitamin K prevents blood clots forming so easily by increasing the time it takes to make fibrin. It usually takes two or three days for these medicines to work fully. read more
This really depends on the person, there is no fixed answer. There is a protocol hospitals follow called Anticoagulation Reversal Procedure that patients on warfarin undergo before and after surgery. read more
While taking anticoagulants, you should avoid supplements with vitamin K. Remember that vitamin K controls the formation of proteins in your liver involved in clotting, so taking in vitamin K can work to counteract your medication and increase your risk of blood clots. In addition, you should avoid medications that can increase your risk of bleeding. read more
Tell your dentist that you take an anticoagulant. Most dental work does not carry a risk of uncontrollable bleeding. However, for dental extractions and surgery you may need temporarily to stop taking an anticoagulant. You should limit the amount of alcohol that you drink to a maximum of one or two units in any day and never binge drink. read more