i also don't think oral Xa will be more expensive than lovenox - in fact should be far less expensive per day In the US market, Pradaxa costs about $8 per day (http://www.drugstore.com/pradaxa/bottle-60-150mg-capsules/qxn00597013554 ). p.s. I presume you meant new oral anticoagulants in general rather than oral Xa inhibitors, specifically. (Pradaxa is a IIa inhibitor.)