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Drug Interactions between deferasirox and vemurafenib

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

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Interactions between your drugs

Moderate

deferasirox vemurafenib

Applies to: deferasirox and vemurafenib

MONITOR: Coadministration with inducers of CYP450 3A4 may decrease the plasma concentrations of vemurafenib, which has been shown in vitro to be a substrate of the isoenzyme. According to the product labeling, administration of a single 960 mg dose of vemurafenib with the potent CYP450 3A4 inducer rifampin at a dosage of 600 mg once daily resulted in a 40% decrease in vemurafenib systemic exposure (AUC) relative to vemurafenib administered alone, with no effect on peak plasma concentration (Cmax). The extent to which other, less potent CYP450 3A4 inducers may affect vemurafenib is unknown.

MANAGEMENT: The potential for diminished pharmacologic effects of vemurafenib should be considered during coadministration with CYP450 3A4 inducers. Alternative treatments or a dose adjustment of vemurafenib may be required if an interaction is suspected.

References

  1. (2011) "Product Information. Zelboraf (vemurafenib)." Genentech

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Drug and food interactions

Moderate

deferasirox food

Applies to: deferasirox

ADJUST DOSING INTERVAL: According to product labeling, the bioavailability of deferasirox was variably increased when taken with a meal.

MANAGEMENT: To ensure consistent plasma drug levels, deferasirox should be taken on an empty stomach 30 minutes before eating preferably at the same time everyday.

References

  1. (2005) "Product Information. Exjade (deferasirox)." Novartis Pharmaceuticals

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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.


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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.