I have been on Coumadin for most of the last two years following two episodes of clots
in my right leg. My INR varied between 1.8 and 2.4 and most often was between 2.0 and 2.2.
In those two years may other medications, my diet, and level of exercise remained mostly the same. My Coumadin dose was 5mg four days a week and 7.5mg three days a week for most of the two years. Now my INR has suddenly jumped up. Yesterday it tested at 4.9, so my doctor had me retested today and it was 4.3.