Switching from warfarin to a NOAC - and back again

One in every 20 patients who switch from warfarin to a non-vitamin K oral anticoagulant (NOAC) are likely to switch back again, Queensland data suggests.

The retrospective study of patients enrolled in a warfarin program at a private pathology practice showed that more than 3000 patients switched from warfarin to a NOAC during the five-year period between 2012 and 2017.

But 4.7% of these patients switched back to warfarin, with most (61%) reverting within six months of the switch to a NOAC, the authors wrote in the Journal of Thrombosis and Thrombolysis.

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