Calcineurin‐inhibitor induced pain syndrome due to interaction with clarithromycin: A case report

Abstract Calcineurin inhibitor‐induced pain syndrome (CIPS) is a rare but serious condition characterized by severe lower leg pain, often associated with elevated tacrolimus (TAC) levels. We report the case of a 57‐year‐old woman with rheumatoid arthritis (RA) who developed CIPS following a drug int...

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Bibliographic Details
Main Authors: Satoshi Inaba, Hisatoshi Okumura, Tatsuya Aoki, Atsushi Kawashima
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Journal of General and Family Medicine
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Online Access:https://doi.org/10.1002/jgf2.769
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Summary:Abstract Calcineurin inhibitor‐induced pain syndrome (CIPS) is a rare but serious condition characterized by severe lower leg pain, often associated with elevated tacrolimus (TAC) levels. We report the case of a 57‐year‐old woman with rheumatoid arthritis (RA) who developed CIPS following a drug interaction between TAC and clarithromycin (CAM), a common macrolide antibiotic. Discontinuation of TAC led to a rapid resolution of symptoms. This case highlights the importance of monitoring TAC levels and being cautious of drug interactions, especially in primary care settings, to prevent adverse events like CIPS.
ISSN:2189-7948