JOURNAL ARTICLE
REVIEW

Disadvantages of VKA and requirements for novel anticoagulants

Raji Shameem, Jack Ansell
Best Practice & Research. Clinical Haematology 2013, 26 (2): 103-14
23953899
Vitamin K antagonists have been in wide use for over 70 years. Warfarin, the most commonly used vitamin K antagonist, has been shown to be highly effective in treating and preventing thrombosis. Despite this, warfarin has many disadvantages, which has led to the development of a new class of oral anticoagulants targeted to specific coagulation factors designated as target-specific oral anticoagulants (TSOAs). TSOAs include the thrombin inhibitors (dabigatran) and factor Xa inhibitors (rivaroxaban, apixaban). This chapter reviews the disadvantages of warfarin and evaluates both the advantages and disadvantages of the new oral anticoagulants.

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