Anticoagulants The anticoagulants (see figure and table) include Low molecular weight heparins (LMWHs) Unfractionated heparin (UFH) Factor Xa inhibitors: oral (eg, rivaroxaban, apixaban, edoxaban) and parenteral (fondaparinux) Direct thrombin inhibitors: oral (dabigatran etexilate) and parenteral (argatroban, bivalirudin, desirudin) Warfarin Oral factor Xa inhibitors and direct thrombin inhibitors are sometimes referred to as direct oral anticoagulants (DOACs).