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Drug Interactions between ranolazine and vismodegib

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

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Interactions between your drugs

Moderate

ranolazine vismodegib

Applies to: ranolazine and vismodegib

MONITOR: Coadministration with inhibitors of P-glycoprotein may increase the plasma concentrations of vismodegib, which has been shown in vitro to be a substrate of the efflux transporter. The potential for increased pharmacologic effects of vismodegib, including adverse effects such as muscle spasm, alopecia, dysgeusia/ageusia, weight loss, fatigue, nausea, vomiting, diarrhea, decreased appetite, constipation and arthralgia, should be considered.

MANAGEMENT: Caution is advised if vismodegib is used in combination with P-glycoprotein inhibitors.

References (2)
  1. (2012) "Product Information. Erivedge (vismodegib)." Genentech
  2. Cerner Multum, Inc. (2015) "Canadian Product Information."

Drug and food interactions

Major

ranolazine food

Applies to: ranolazine

GENERALLY AVOID: Grapefruit and grapefruit juice may significantly increase the plasma concentrations of orally administered ranolazine. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Because ranolazine prolongs QT interval in a dose-dependent manner, high plasma levels of ranolazine may increase the risk of ventricular arrhythmias such as ventricular tachycardia, ventricular fibrillation, and torsade de pointes.

MANAGEMENT: Patients treated with ranolazine should avoid consumption of grapefruit juice and other grapefruit products if possible. Otherwise, the dosage of ranolazine should be limited to 500 mg twice a day.

References (1)
  1. (2006) "Product Information. Ranexa (ranolazine)." Calmoseptine Inc

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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