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Drug Interactions between Lytgobi and romidepsin

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

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Interactions between your drugs

Moderate

romiDEPsin futibatinib

Applies to: romidepsin and Lytgobi (futibatinib)

MONITOR: Coadministration with inhibitors of P-glycoprotein (P-gp) may increase the plasma concentrations of romidepsin, which is a substrate of the efflux transporter. Although there are no formal drug interaction studies, the interaction may increase the risk of hematologic toxicities such as anemia, leukopenia, and thrombocytopenia as well as electrocardiographic changes such as QT interval prolongation and T-wave and ST-segment changes.

MANAGEMENT: Caution is advised if romidepsin is prescribed in combination with P-gp inhibitors. Pharmacologic response to romidepsin should be monitored more closely whenever a P-gp inhibitor is added to or withdrawn from therapy, and the romidepsin dosage adjusted as necessary. Patients should have complete blood cell counts, electrocardiograms, and serum electrolyte levels performed at baseline and regular intervals as recommended in the product labeling. Patients should be advised to seek medical attention if they experience symptoms that could indicate the occurrence of torsade de pointes such as dizziness, lightheadedness, fainting, palpitation, irregular heart rhythm, shortness of breath, or syncope.

References (1)
  1. (2009) "Product Information. Istodax (romidepsin)." Gloucester Pharmaceuticals

Drug and food interactions

Major

futibatinib food

Applies to: Lytgobi (futibatinib)

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of futibatinib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Increased exposure to futibatinib may increase the risk of adverse effects such as retinal pigment epithelial detachment, dry eye/corneal keratitis, pyrexia, hyperphosphatemia and soft tissue mineralization, palmar-plantar erythrodysesthesia syndrome, fatigue, nail toxicity, urinary tract infection, constipation, diarrhea, dry mouth, increased liver function tests (ALT and AST), stomatitis, abdominal pain, ascites, bile duct obstruction, and musculoskeletal pain.

MANAGEMENT: Patients should be advised to avoid consumption of grapefruit or grapefruit juice during treatment with futibatinib.

References (1)
  1. (2022) "Product Information. Lytgobi (futibatinib)." Taiho Oncology, Inc., 1

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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