Blood transfusion

People taking warfarin

If you are taking warfarin (a medicine that stops your blood from clotting), you should be given a transfusion of prothrombin complex concentrate straightaway if you are bleeding heavily or if you have had a head injury that might have caused bleeding in your brain.

You may be given a transfusion of prothrombin complex concentrate straightaway if you are taking warfarin and need to have an emergency operation.