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Levofloxacin and Warfarin Interaction

Susan L. Ravnan, Christy Locke

Pharmacotherapy The Journal of Human Pharmacology and Drug Therapy, 2001

31 citations

Abstract

Numerous case reports have documented an enhanced hypoprothrombinemic effect caused by an interaction between fluoroquinolones (most notably, ciprofloxacin) and warfarin sodium. Conflicting data exist regarding the clinical significance of this interaction. Two patients who had elevated international normalized ratios after receiving concurrent levofloxacin and warfarin sodium are described.

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