Eliquis is a “single key activated factor,” while warfarin affects many different steps in the anticoagulant process. Vitamin K foods aren’t restricted with Eliquis. That might indicate that you could take CoQ10 with Eliquis. But Eliquis is so new we have little research to definitively say this.
To read Steve’s full answer, see FAQs Minerals & Supplements, Question 12: CoQ10 & Blood Thinners.