I am 1 month post surgery. On Amiodarone which reduces Warfarin dose, plus other things which don't matter.
Warfarin 2mg per day -> INR 3.2
Drop to 1.5 mg per day and test 4 days later -> INR 1.8
So until the next test my dose is to alternate 2mg followed by 1.5mg. Gonna see how this goes...