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Drug Interactions between grepafloxacin and ribociclib

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

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Interactions between your drugs

Major

grepafloxacin ribociclib

Applies to: grepafloxacin and ribociclib

CONTRAINDICATED: Grepafloxacin can cause dose-related prolongation of the QT interval. Theoretically, coadministration with other agents that can prolong the QT interval may result in additive effects and increased risk of ventricular arrhythmias including torsade de pointes and sudden death.

MANAGEMENT: Coadministration of grepafloxacin with other drugs that can prolong the QT interval is considered contraindicated.

References

  1. Thomas M, Maconochie JG, Fletcher E "The dilemma of the prolonged QT interval in early drug studies." Br J Clin Pharmacol 41 (1996): 77-81
  2. "Product Information. Raxar (grepafloxacin)." Glaxo Wellcome PROD (2001):
  3. Lode H, Vogel F, Elies W "Grepafloxacin: A review of its safety profile based on clinical trials and postmarketing surveillance." Clin Ther 21 (1999): 61-74
  4. Ball P "Quinolone-induced QT interval prolongation: a not-so-unexpected class effect." J Antimicrob Chemother 45 (2000): 557-9
  5. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  6. Canadian Pharmacists Association "e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink" (2006):
  7. Cerner Multum, Inc. "Australian Product Information." O 0
View all 7 references

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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. "Product Information. Kisqali (ribociclib)." Novartis Pharmaceuticals (2017):

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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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