Most patients taking warfarin do not maintain stable INR valuesBMJ 2016; 354 doi: https://doi.org/10.1136/bmj.i4402 (Published 10 August 2016) Cite this as: BMJ 2016;354:i4402
- Jacqui Wise
Most patients taking warfarin who have stable international normalised ratio (INR) values do not maintain them over time, a study published in JAMA has found. The finding challenges the belief that patients with good outcomes from warfarin should keep taking it rather than switching to non-vitamin K oral anticoagulants.1
Warfarin substantially decreases stroke risk in patients with atrial fibrillation, but it has a narrow therapeutic window (INR …
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