Effect of rifampicin on anticoagulation of warfarin: A case report

The drug interaction between warfarin and rifampicin is widely known, but there are still some difficulties in managing the combination of the two drugs. A patient with brucellosis received strict monitoring from a Chinese pharmacist team during combination of warfarin and rifampicin. The dose of wa...

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Bibliographic Details
Published in:World journal of clinical cases 2021-02, Vol.9 (5), p.1087-1095
Main Authors: Hu, Ya-Ni, Zhou, Bo-Ting, Yang, Hua-Rong, Peng, Qi-Lin, Gu, Xu-Rui, Sun, Shu-Sen
Format: Article
Language:English
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Case Report
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Summary:The drug interaction between warfarin and rifampicin is widely known, but there are still some difficulties in managing the combination of the two drugs. A patient with brucellosis received strict monitoring from a Chinese pharmacist team during combination of warfarin and rifampicin. The dose of warfarin was increased to 350% in 3 mo before reaching the lower international normalized ratio treatment window. No obvious adverse reaction occurred during the drug-adjustment period. This is the first case report of long-term combined use of rifampicin and warfarin in patients with brucellosis and valve replacement in China based on the Chinese lower warfarin dose and international normalized ratio range. Anticoagulation for valve replacement in Chinese patients differs from that in other races. Establishment of a pharmacist clinic provides vital assistance in warfarin dose adjustment.
ISSN:2307-8960
2307-8960
DOI:10.12998/wjcc.v9.i5.1087