RT Book, Section A1 CHU, VALERY L. A1 MALTZ, HELENE C. A2 Cohen, Henry SR Print(0) ID 1112259866 T1 Warfarin T2 Casebook in Clinical Pharmacokinetics and Drug Dosing YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071628358 LK accesspharmacy.mhmedical.com/content.aspx?aid=1112259866 RD 2024/04/25 AB Following the isolation of hemorrhagic agents from spoiled sweet clover hay in the 1930s and development of 3-phenyacetyl ethyl, 4-hydroxycoumarin as a rat poison in 1948, warfarin has been the primary oral anticoagulant used in North America since its approval for medical use in 1954.1 Even following the availability of new oral anticoagulant classes, it is widely used for its various indications including prophylaxis and treatment of venous thrombosis and pulmonary embolism, prophylaxis and treatment of thromboembolic complications of atrial fibrillation and heart valve replacement, and postmyocardial infarction (MI) reduction in the risk of death, recurrent MI, and thromboembolic events such as stroke or systemic embolization.2