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Drug Interactions between ranolazine and Xospata

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

ranolazine gilteritinib

Applies to: ranolazine and Xospata (gilteritinib)

MONITOR: Coadministration with inhibitors of CYP450 3A4 and/or P-glycoprotein (P-gp) may increase the plasma concentrations of gilteritinib, which is a substrate of both the isoenzyme and the efflux transporter. When gilteritinib was coadministered with itraconazole, a potent CYP450 3A4 and P-gp inhibitor, gilteritinib peak plasma concentration (Cmax) and systemic exposure (AUC) increased by approximately 20% and 120%, respectively, compared to administration of gilteritinib alone. Gilteritinib Cmax and AUC increased by approximately 16% and 40%, respectively, when coadministered with fluconazole, a moderate CYP450 3A4 inhibitor.

MANAGEMENT: Caution is advised when gilteritinib is used with CYP450 3A4 and/or P-gp inhibitors. Patients should be monitored for adverse effects such as QT interval prolongation, pancreatitis, liver transaminase and bilirubin elevations, edema, infections and stomatitis, and the gilteritinib dosage adjusted as necessary in accordance with the product labeling.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2018) "Product Information. Xospata (gilteritinib)." Astellas Pharma US, Inc

Drug and food interactions

Major

ranolazine food

Applies to: ranolazine

GENERALLY AVOID: Grapefruit and grapefruit juice may significantly increase the plasma concentrations of orally administered ranolazine. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Because ranolazine prolongs QT interval in a dose-dependent manner, high plasma levels of ranolazine may increase the risk of ventricular arrhythmias such as ventricular tachycardia, ventricular fibrillation, and torsade de pointes.

MANAGEMENT: Patients treated with ranolazine should avoid consumption of grapefruit juice and other grapefruit products if possible. Otherwise, the dosage of ranolazine should be limited to 500 mg twice a day.

References (1)
  1. (2006) "Product Information. Ranexa (ranolazine)." Calmoseptine Inc

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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