<text value="Concomitant treatment with any other anticoagulant agent e.g., unfractionated heparin (UFH),\nlow molecular weight heparins (enoxaparin, dalteparin, etc.), heparin derivatives\n(fondaparinux, etc.), oral anticoagulants (warfarin, rivaroxaban, dabigatran, etc.) except under\nspecific circumstances of switching anticoagulant therapy (see section 4.2) or when UFH is\ngiven at doses necessary to maintain an open central venous or arterial catheter (see\nsection 4.5)."/>