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Drug Interactions between ixazomib and rifabutin

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

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Interactions between your drugs

Major

rifabutin ixazomib

Applies to: rifabutin and ixazomib

GENERALLY AVOID: Coadministration with potent inducers of CYP450 3A4 may significantly decrease the plasma concentrations of ixazomib, which is a substrate of the isoenzyme. When ixazomib was administered with the potent CYP450 3A4 inducer rifampin, ixazomib peak plasma concentration (Cmax) and systemic exposure (AUC) decreased by 54% and 74%, respectively. The therapeutic efficacy of ixazomib may be reduced.

MANAGEMENT: Concomitant use of ixazomib with potent CYP450 3A4 inducers should generally be avoided.

References (1)
  1. (2015) "Product Information. Ninlaro (ixazomib)." Takeda Pharmaceuticals America

Drug and food interactions

Moderate

ixazomib food

Applies to: ixazomib

ADJUST DOSING INTERVAL: Food may reduce the oral bioavailability of ixazomib. A food effect study found that administration of a single 4 mg dose of ixazomib with a high-fat meal decreased ixazomib peak plasma concentration (Cmax) by 69% and systemic exposure (AUC) by 28%.

MANAGEMENT: Ixazomib should be taken at least one hour before or two hours after eating. On days when both ixazomib and dexamethasone are administered, advise patients to separate dosing times, since dexamethasone should be taken with food while ixazomib should be taken on an empty stomach.

References (1)
  1. (2015) "Product Information. Ninlaro (ixazomib)." Takeda Pharmaceuticals America

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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