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Drug Interactions between relugolix and Xtandi

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

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Interactions between your drugs

Minor

enzalutamide relugolix

Applies to: Xtandi (enzalutamide) and relugolix

Coadministration with lone inducers of CYP450 3A4 is unlikely to decrease the plasma concentrations of relugolix to a clinically significant extent. In vitro, relugolix is metabolized primarily by CYP450 3A and, to a lesser extent, by CYP450 2C8. Relugolix is also a substrate for intestinal P-gp. When relugolix was coadministered with rifampin, a combined P-gp and potent CYP450 3A inducer, relugolix peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 23% and 55%, respectively. By contrast, no clinically significant differences in the pharmacokinetics of relugolix were observed when coadministered with enzalutamide, a strong CYP450 3A inducer that is not known to induce P-gp.

References

  1. (2021) "Product Information. Orgovyx (relugolix)." Myovant Sciences, Inc.

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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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