After a patient begins warfarin, their INR will be checked often to determine their response to the drug. A patient's dose is determined once the INR falls within a specific therapeutic range.

Our study found that the INR was increased in the over-whelming majority (91%) of patients following concomitant use of warfarin and short-term oral corticosteroids. Since most target INR ranges ...

A phase IIa trial has demonstrated that a structural analogue of warfarin is safe, tolerable, and efficacious. Investigators believe that this new anticoagulant, named tecarfarin, will be ...