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Drug Interactions between dexamethasone and idelalisib

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

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Interactions between your drugs

Moderate

dexAMETHasone idelalisib

Applies to: dexamethasone and idelalisib

MONITOR: Coadministration with inducers of CYP450 3A4 may decrease the plasma concentrations of idelalisib, which is a substrate of the isoenzyme. In healthy volunteers, administration of a single 150 mg dose of idelalisib with the potent CYP450 3A4 inducer rifampin (600 mg daily for 8 days) decreased mean idelalisib peak plasma concentration (Cmax) by 58% and systemic exposure (AUC) by 75%. Data are not available for idelalisib in combination with other, less potent CYP450 3A4 inducers.

MANAGEMENT: Patients receiving idelalisib with CYP450 3A4 inducers should be monitored for potentially diminished pharmacologic response to idelalisib. Concomitant use should be avoided if an interaction is suspected.

References (1)
  1. (2014) "Product Information. Zydelig (idelalisib)." Gilead Sciences

Drug and food interactions

No alcohol/food interactions were found. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

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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