I have been on comadin for a long time. I was on it,but I wasn't
having it checked every month like I should have.

The theraputic level is between 2.0 and 3.0, so not all people are on
the same dosage.
I was on 5 mg and I thought the doctors were watching it. Mine got
down to 1.9 and I had a slight stroke.

Make sure you ask what the level is when you take the test. Don't
depend on the doctors checking for you. Sometimes they get too busy
or they don't have people checking.

Jim