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Safety update: tramadol-warfarin interaction

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Key learning points

  • Warfarin has a narrow therapeutic index and many medicines interact with it to increase the risk of bleeding.

  • A coroner investigated the case of a patient who died from bleeding in the brain following the concomitant use of warfarin and tramadol.

  • The Medicines and Healthcare products Regulatory Agency has highlighted an increased risk of major bleeding when warfarin and tramadol are used together.

In June’s Drug Safety Update, the Medicines and Healthcare products Regulatory Agency (MHRA) included details of the risk of an increased international normalised ratio (INR) and the potential for major bruising and bleeding when warfarin and tramadol are taken concomitantly.1

Overview

The MHRA published an article in its Drug Safety Update …

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Footnotes

  • Contributors DTB Team.

  • Provenance and peer review Commissioned; internally peer reviewed.