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Drug Interactions between baricitinib and ifosfamide / mesna

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

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Interactions between your drugs

Major

ifosfamide baricitinib

Applies to: ifosfamide / mesna and baricitinib

MONITOR CLOSELY: Coadministration of baricitinib with other immuno- or myelosuppressive agents may potentiate the risk of infections as well as lymphoma and other malignancies. Serious and sometimes fatal infections due to bacterial, mycobacterial, invasive fungal, viral, or other opportunistic pathogens have been reported in patients receiving baricitinib, most of whom were taking concomitant immunosuppressants such as methotrexate or corticosteroids. The most common serious infections reported with baricitinib treatment include pneumonia, herpes zoster, and urinary tract infection. Opportunistic infections include tuberculosis, multidermatomal herpes zoster, esophageal candidiasis, pneumocystosis, acute histoplasmosis, cryptococcosis, cytomegalovirus, and BK virus. Lymphoma and other malignancies have also been observed with baricitinib use, with or without concomitant immunosuppressants.

MANAGEMENT: Close monitoring for the development of infection is recommended if baricitinib is used in combination with other immuno- or myelosuppressive agents, including the possible development of tuberculosis in patients who tested negative for latent tuberculosis infection prior to initiating therapy. Lymphocyte and neutrophil counts as well as hemoglobin should be evaluated at baseline and regularly during therapy, and baricitinib dosage adjusted as necessary in accordance with the product labeling. Patients should be advised to contact their physician if they develop signs and symptoms of infection such as fever, chills, diarrhea, sore throat, muscle aches, shortness of breath, blood in phlegm, weight loss, red or inflamed skin, body sores, and pain or burning during urination. If a serious infection, an opportunistic infection, or sepsis develops, baricitinib should be interrupted until the infection is controlled.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. Cerner Multum, Inc. "Australian Product Information."
  3. (2018) "Product Information. Olumiant (baricitinib)." Lilly, Eli and Company

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Drug and food interactions

Moderate

ifosfamide food

Applies to: ifosfamide / mesna

GENERALLY AVOID: Grapefruit and/or grapefruit juice may reduce the efficacy of ifosfamide, whose anticancer effect is dependent on its activation to the 4-hydroxyifosfamide metabolite via CYP450 3A4. The proposed mechanism is inhibition of CYP450 3A4 metabolism by certain compounds present in grapefruit. There are no data available about the effects of grapefruit on ifosfamide. However, in a small study, 8 patients with incurable malignancies received ifosfamide 3 g/m2 by infusion with the potent CYP450 3A4 inhibitor ketoconazole 200 mg orally twice daily for 4 days starting 1 day before the ifosfamide infusion. Ketoconazole decreased the clearance of ifosfamide by 11%, decreased systemic exposure (AUC) of the active metabolite 4-hydroxyifosfamide by 30%, and increased the AUC of the inactive but potentially neurotoxic metabolite 2-dechloroethylifosfamide by 23%, as compared to control. Because pharmacokinetic interactions involving grapefruit juice are often subject to a high degree of interpatient variability, the extent to which a given patient may be affected is difficult to predict.

GENERALLY AVOID: Alcohol may potentiate the neurotoxic effects of ifosfamide. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills. In addition, ifosfamide therapy may cause gastrointestinal disorders and alcohol consumption may increase nausea and vomiting.

MANAGEMENT: Given the potential for reduced efficacy of ifosfamide and increased risk of neurotoxicity and nephrotoxicity it may be advisable for patients to avoid consumption of grapefruit, grapefruit juice, or supplements that contain grapefruit during treatment with ifosfamide. In addition, patients receiving ifosfamide should be warned of the increased risk of neurotoxicity, nausea and vomiting when used in combination with alcohol. Patients should avoid or limit the consumption of alcohol during treatment with ifosfamide.

References

  1. (2019) "Product Information. Ifosfamide (ifosfamide)." Hikma USA (formerly West-Ward Pharmaceutical Corporation)
  2. Kerbusch T, jansen rlh, mathot raa, huitema adr, Jansen RNM, Rijswijk REN, Beijen JH (2001) "Modulation of the cytochrome P450-mediated metabolism of ifosfamide by ketoconazole and rifampin" Clin Pharmacol and Therapeutic, 70, p. 132-141
  3. (2018) "Product Information. Ifex (ifosfamide)." Baxter Pharmaceutical Products, Inc
  4. (2018) "Product Information. Holoxan (iFOSFamide)." Baxter Healthcare Pty Ltd
  5. (2022) "Product Information. Ifosfamide (ifosfamide)." Baxter Healthcare Ltd
  6. (2018) "Product Information. Ifex (ifosfamide)." Baxter Corporation
View all 6 references

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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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