Conflicting information exists about the effect of vitamin E on prothrombin time. A 55-year-old man taking warfarin and 1200 units of vitamin E daily developed ecchymoses and hematuria ...

In patients with protein C and protein S deficiency, when warfarin therapy is started ... such as factor IX and X and prothrombin. [28] The temporary hypercoagulable state which results is ...

which is the highest period of time where you're going to have thromboembolic events.” This is an attractive potential as NOACs are “a lot easier to use” than warfarin as there’s no need to measure ...