- Any coagulation-active drug (i.e., non-steroidal anti-inflammatory drugs, war-farin, coumarin derivatives, platelet aggregation inhibitors) within 1 week prior to start of the PK phase or treatment for the bleeding episode or surgery, or as a planned or expected medication during the time period from Day 1 until 24 hours (i.e., 1 day) after the last Octafibrin infusion.