• B01AA Vitamin k antagonists 8 drugs
• B01AB Heparin group 28 drugs
• B01AC Platelet aggregation inhibitors excl. heparin 81 drugs
• B01AD Enzymes 2 drugs
• B01AE Direct thrombin inhibitors 6 drugs
• B01AF Direct factor xa inhibitors 18 drugs
• B01AX Other antithrombotic agents 3 drugs