• B01AA Vitamin k antagonists 9 drugs
• B01AB Heparin group 65 drugs
• B01AC Platelet aggregation inhibitors excl. heparin 154 drugs
• B01AD Enzymes 11 drugs
• B01AE Direct thrombin inhibitors 74 drugs
• B01AF Direct factor xa inhibitors 244 drugs
• B01AX Other antithrombotic agents 3 drugs