Stop taking Pradaxa (dabigatran), Eliquis (apixaban) or Xarelto (rivaroxaban) at least 48 hours before your procedure, unless your doctor instructs you otherwise. In some cases, your doctor may instruct you to receive blood thinner injections into your skin. If you have any questions or concerns, call the Cardiac Catheterization Laboratory any time at 212-241-5881 and ask to speak to a nurse practitioner. We will be glad to assist you.