RT Book, Section A1 Chen, Betty C. A1 Su, Mark K. A2 Nelson, Lewis S. A2 Howland, Mary Ann A2 Lewin, Neal A. A2 Smith, Silas W. A2 Goldfrank, Lewis R. A2 Hoffman, Robert S. SR Print(0) ID 1163002555 T1 Prothrombin Complex Concentrates and Direct Oral Anticoagulant Antidotes T2 Goldfrank's Toxicologic Emergencies, 11e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259859618 LK accesspharmacy.mhmedical.com/content.aspx?aid=1163002555 RD 2024/04/23 AB Prothrombin complex concentrate (PCC) is a lyophilized powder that ­consists of coagulation factors II, VII, IX, and X in addition to other factors and additives. Prothrombin complex concentrates come in two forms, activated and nonactivated. Activated PCCs (aPCCs) are typically used to treat hemophilia, and formulations consist of a mixture of nonactivated and activated factors. Nonactivated factors require activation by the other cofactors to function in the coagulation cascade. In the United States, nonactivated PCCs are available in both four-factor and three-factor formulations (4F-PCC and 3F-PCC, respectively). Prothrombin complex concentrates are also widely available in Europe, Asia, and Australia. In addition to clotting factors, 4F-PCC contains heparin and antithrombotic factors C and S.13 Three-­factor PCC contains only small amounts of factor VII and heparin.16 Although some direct oral anticoagulants (DOACs) now have a reversal agent, PCCs are still used to attempt rapid reversal of DOAC-induced coagulopathy.