What substitutes for warfarin are there?

Multiple.: IV - heparin, Subcutaneous injection - lovenox, (enoxaparin) Oral - newer agents include Pradaxa, Xarelto, and Eliqus. Discuss alternatives with your doc.

Warfarin alternative: Warfarin alternatives have the advantage of not needing to test the blood for activity. The negative is that they cannot be reversed as easily and have to dissipate naturally in case of bleeding problems. They are riveroxaban, apixaban and dabigatran.