Article ; Online: Elevated INR in a COVID-19 patient after concomitant administration of favipiravir and warfarin: A case report.
Journal of clinical pharmacy and therapeutics
2021 Volume 47, Issue 3, Page(s) 407–410
Abstract: What is known and objective: Favipiravir is a promising treatment candidate for managing coronavirus disease 2019 (COVID-19). Warfarin has many drug interactions, but no interactions with favipiravir have been reported.: Case summary: Our patient was ...
Abstract | What is known and objective: Favipiravir is a promising treatment candidate for managing coronavirus disease 2019 (COVID-19). Warfarin has many drug interactions, but no interactions with favipiravir have been reported. Case summary: Our patient was taking warfarin for deep vein thrombosis. The international normalized ratio (INR) was stable (1.65 to 2.0); however, it increased to 4.63 after administering favipiravir. The patient had no other factors justifying this change. What is new and conclusion: Favipiravir and warfarin might have previously unidentified drug interactions that elevated the INR. Therefore, INR must be closely monitored when they are concomitantly administered in COVID-19 patients. |
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MeSH term(s) | Amides ; Anticoagulants/therapeutic use ; COVID-19/drug therapy ; Drug Interactions ; Humans ; International Normalized Ratio ; Pyrazines ; Warfarin/therapeutic use |
Chemical Substances | Amides ; Anticoagulants ; Pyrazines ; Warfarin (5Q7ZVV76EI) ; favipiravir (EW5GL2X7E0) |
Language | English |
Publishing date | 2021-08-02 |
Publishing country | England |
Document type | Case Reports |
ZDB-ID | 639006-7 |
ISSN | 1365-2710 ; 0269-4727 |
ISSN (online) | 1365-2710 |
ISSN | 0269-4727 |
DOI | 10.1111/jcpt.13499 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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