Examples of anticoagulants are low-molecular weight heparins like enoxaparin (Lovenox), dalteparin (Fragmin), tinzaparin (Innohep), warfarin (Coumadin) and direct thrombin inhibitors (DTIs) like bivalirudin (Angiomax), ximelagatran (Exanta), argatroban (Novastan), danaparoid (Orgaran), lepirudin (Refludan) and desirudin (Revasc).