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Drug Interactions between osimertinib and Rapamune

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

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Interactions between your drugs

Moderate

sirolimus osimertinib

Applies to: Rapamune (sirolimus) and osimertinib

GENERALLY AVOID: Coadministration with osimertinib may alter the plasma concentrations of drugs that are primarily metabolized by CYP450 3A4. In vitro, osimertinib has been shown to be a competitive inhibitor as well as inducer of CYP450 3A4. However, no pharmacokinetic data are available from drug interaction studies.

MANAGEMENT: Concomitant use of osimertinib and sensitive CYP450 3A4 substrates or substrates with narrow therapeutic ranges should generally be avoided. These drugs include, but are not limited to: alfentanil, cisapride, colchicine, cyclosporine, fentanyl, ivacaftor, lovastatin, simvastatin, oral midazolam, triazolam, pimozide, quinidine, sildenafil, ergot derivatives, macrolide immunosuppressants, and vinca alkaloids.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. "Product Information. Tagrisso (osimertinib)." Astra-Zeneca Pharmaceuticals (2015):

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Drug and food interactions

Moderate

sirolimus food

Applies to: Rapamune (sirolimus)

ADJUST DOSING INTERVAL: Consumption of food can decrease the rate and extent of gastrointestinal absorption of sirolimus. Also, the consumption of grapefruit juice may result in increased sirolimus trough concentrations.

MANAGEMENT: Experts recommend that this drug be taken either at least one hour prior to eating or consistently with or without food to avoid variations in sirolimus blood levels. The manufacturer recommends against using grapefruit juice for dilution of sirolimus doses. Patients should be monitored for clinical and laboratory evidence of altered immunosuppressant effects.

References

  1. "Product Information. Rapamune (sirolimus)." Wyeth-Ayerst Laboratories PROD (2001):

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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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