Warfarin resistance due to malabsorption.

Talstad, I; Gamst, O N · J Intern Med · 1994

case_report · Level V

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Abstract

A female patient developed warfarin resistance after 2 years of satisfactory therapy. Only a third of orally administered warfarin was absorbed, the clearance of warfarin was normal. The patient was also resistant for dicoumarol, while phenandione had satisfactory effect on the prothrombin time (PT).

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