Selekoksib ve Flukonazol etkileşimi

Co-administration of celecoxib with drugs that are known to inhibit CYP2C9 (e.g., fluconazole) may enhance the exposure and toxicity of celecoxib whereas co-administration with CYP2C9 inducers (e.g., rifampin) may lead to compromised efficacy of celecoxib.

A dosage adjustment may be warranted when VYSCOXA is administered with CYP2C9 inhibitors or inducers [ see Clinical Pharmacology (12.3) ].

CYP2C9 Inhibitors or inducers Clinical Impact: Celecoxib metabolism is predominantly mediated via cytochrome P450 (CYP) 2C9 in the liver.

Celecoxib During concomitant treatment with fluconazole (200 mg daily) and celecoxib (200 mg), the celecoxib C max and AUC increased by 68% and 134%, respectively.

Half of the celecoxib dose may be necessary when combined with fluconazole.

Non-steroidal anti-inflammatory drugs The C max and AUC of flurbiprofen were increased by 23% and 81%, respectively, when coadministered with fluconazole compared to administration of flurbiprofen alone.

Although not specifically studied, fluconazole has the potential to increase the systemic exposure of other non-steroidal anti-inflammatory drugs (NSAIDs) that are metabolized by CYP2C9 (e.g., naproxen, lornoxicam, meloxicam, diclofenac).

Frequent monitoring for adverse events and toxicity related to NSAIDs is recommended.