Warfarin: An Advanced Clinical and Pharmacological Review
Warfarin is a time-tested oral anticoagulant, primarily utilised to prevent and treat thromboembolic disorders. It functions by inhibiting vitamin K epoxide reductase complex 1 (VKORC1), which impedes the recycling of vitamin K in the liver. This disruption in vitamin K metabolism compromises the synthesis of vitamin K-dependent clotting factors—namely, factors II, VII, IX, and X, along with anticoagulant proteins C and S. Although the use of newer agents like Direct Oral Anticoagulants (DOACs) is increasing, Warfarin remains indispensable in clinical situations demanding precise anticoagulation control or cost-effectiveness.
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