Interesting advice from your doctor saying that Coumadin is a concern because of the amount of testing. I've been on Coumadin for several years because of A-fib. Initially, lab tests were taken every month, but after my reaction to the disease and the medications -- as well as the regulatory readings of my INR -- my lab tests have been once every two months for the last two years. A quick stop at a lab a mile away for blood withdrawal that takes no more than 15 minutes (including waiting time) is the end of my inconvenience. My medical service gets the results the next day and calls me to see how I'm doing and giving me advice on whether and how to react.
Martin