Ross and others,
Thanks for letting me know that, I honestly didn't know that aspirin was normally used along with anticoagulant therapy. I guess if you're getting your INR checked regularly and it is within range it doesn't really matter how it gets there, only that it stays there. If you take one aspirin a day consistently as part of your medication therapy it makes sense. I think I was thinking about taking it for pain or fever instead of Tylenol where it could raise your INR quickly if you are taking several 325mg tablets daily. That's what happens when I try to make a comment about anticoagulation therapy when I've never been on it. But if nothing else at least I learned something.