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Drug Interactions between ribociclib and trofinetide

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

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Interactions between your drugs

Moderate

ribociclib trofinetide

Applies to: ribociclib and trofinetide

MONITOR: Coadministration with trofinetide may increase the plasma concentrations of drugs that are substrates of CYP450 3A4 via inhibition of the isoenzyme. Based on pharmacokinetic modeling, concomitant use of trofinetide and oral midazolam, a sensitive CYP450 3A4 substrate, is predicted to increase midazolam systemic exposure (AUC) by approximately 1.33-fold. Clinical data are currently lacking.

MANAGEMENT: Caution is advised if trofinetide is coadministered with CYP450 3A4 substrates, particularly sensitive substrates or those with a narrow therapeutic range. If concomitant use is required, clinical and laboratory monitoring may be appropriate whenever trofinetide is added to or withdrawn from therapy. The prescribing information for concomitant medications should be consulted to assess the benefits versus risks of coadministration and for any dosage adjustments that may be required.

References (1)
  1. (2023) "Product Information. Daybue (trofinetide)." Acadia Pharmaceuticals

Drug and food interactions

Moderate

ribociclib food

Applies to: ribociclib

GENERALLY AVOID: Pomegranates and grapefruit may increase the systemic exposure to ribociclib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in these fruits. Increased exposure to ribociclib may increase the risk of adverse effects such as infections, neutropenia, leukopenia, anemia, thrombocytopenia, anorexia, nausea, vomiting, diarrhea, stomatitis, alopecia, fatigue, headache, and abnormal liver function may be increased.

MANAGEMENT: Patients receiving ribociclib should avoid consumption of pomegranates or pomegranate juice and grapefruit or grapefruit juice during treatment.

References (1)
  1. (2017) "Product Information. Kisqali (ribociclib)." Novartis Pharmaceuticals

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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