Prothrombin complex concentrate (PCC) is a medication used to reverse the effects of anticoagulants, such as warfarin, in patients who are experiencing bleeding emergencies or require urgent surgery. PCC contains factors II, VII, IX, and X, as well as proteins C and S, which help to promote clot formation and stop excessive bleeding. This medication is typically given intravenously and works quickly to restore normal blood clotting function. PCC is often used in emergency departments, operating rooms, and intensive care units to manage patients with life-threatening bleeding complications.