Pradaxa is a new oral prophylaxis medication in the market. I have used it once so far on the rehab floor for prophylaxis so far as the pt didn't like Heparin or Lovenox injections. It is interesting that your patient (assuming he/she is an outpatient) is on this medication at home. How often do you remember sending pts home on DVT prophylaxis unless you are a rehab doc and it is an acute SCI patient?