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Drug Interactions between darolutamide and rufinamide

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

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Interactions between your drugs

Moderate

rufinamide darolutamide

Applies to: rufinamide and darolutamide

MONITOR: Coadministration with inducers of CYP450 3A4 and/or P-glycoprotein (P-gp) may decrease the plasma concentrations of darolutamide, which is a substrate of both the isoenzyme and the efflux transporter. When darolutamide was coadministered with rifampin, a dual P-gp and potent CYP450 3A4 inducer, mean darolutamide peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 52% and 72%, respectively, compared to administration of darolutamide alone. The decrease in darolutamide exposure by dual P-gp and moderate CYP450 3A4 inducers is expected to be in the range of 36% to 58% according to the prescribing information. The interaction has not been studied with lone inducers of CYP450 3A4 or P-gp.

MANAGEMENT: The potential for diminished pharmacologic effects of darolutamide should be considered during coadministration with CYP450 3A4 and/or P-gp inducers. Alternative treatments may be required if an interaction is suspected.

References

  1. (2019) "Product Information. Nubeqa (darolutamide)." Bayer HealthCare Pharmaceuticals Inc.

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Drug and food interactions

Moderate

rufinamide food

Applies to: rufinamide

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of rufinamide. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

ADJUST DOSING INTERVAL: Food enhances the oral absorption and bioavailability of rufinamide. In healthy volunteers, administration of a single 400 mg dose of rufinamide with food resulted in an approximately 56% increase in mean peak plasma concentration (Cmax) and a 34% increase in systemic exposure (AUC) compared to administration during a fasting state.

MANAGEMENT: To ensure maximal oral absorption, it is preferable to administer rufinamide with food. Patients receiving rufinamide should be advised to avoid consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how rufinamide affects them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References

  1. (2008) "Product Information. Banzel (rufinamide)." Eisai Inc

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Moderate

darolutamide food

Applies to: darolutamide

ADJUST DOSING INTERVAL: Food enhances the oral absorption of darolutamide. According to the prescribing information, bioavailability of darolutamide increased by 2.0 to 2.5-fold when administered with food. A similar increase in exposure was observed for the active metabolite keto-darolutamide.

MANAGEMENT: Darolutamide should be administered with food.

References

  1. (2019) "Product Information. Nubeqa (darolutamide)." Bayer HealthCare Pharmaceuticals Inc.

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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.

See also

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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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