My husbands INR should be 2.5. He is a VERY active 77yo. He is building a single seat car, does field archery (4/5 miles in woodland, while shooting an English Longbow, at least once a week) has just bought a mountan bike (was shortlisted for World road race champs when 19yo.) ran a 6 minute mile until 57yo..etc.
His INR fluctuates from 1.1 to 3.5. he is on 7mg a day.
Is this a normal amount?
He takes no other drugs at all.
He has terible side effects, which the medical proffession don't want to listen to him about, saying warfarin doesn't have side effects...
The last INR was 1.9 and he was told to up the dose again and return in TEN WEEKS for a test. This is now seems to be a normal waiting time for him.
Surely this is all wrong.