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Drug Interactions between alemtuzumab and Bosulif

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

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Interactions between your drugs

Moderate

alemtuzumab bosutinib

Applies to: alemtuzumab and Bosulif (bosutinib)

MONITOR: The use of alemtuzumab with other immunosuppressive or myelosuppressive agents may increase the risk of infections. Alemtuzumab alone may cause severe and prolonged myelosuppression, lymphopenia, and rarely, fatal bone marrow aplasia/hypoplasia, autoimmune idiopathic thrombocytopenia, and autoimmune hemolytic anemia. Serious, sometimes fatal opportunistic infections have been reported, and the risk may theoretically increase when coadministered with other immunosuppressive therapy. Agents that may be significantly myelo- or immunosuppressive include antineoplastic agents, radiation, zidovudine, linezolid, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents (greater than 10 mg/day to 1 mg/kg/day, whichever is less, of prednisone or equivalent for more than 2 weeks), and long-term topical or inhaled corticosteroids.

MANAGEMENT: Caution is advised if alemtuzumab must be used in patients who have recently received or are receiving treatment with other immunosuppressive or myelosuppressive drugs, and vice versa. The manufacturer recommends that single doses of alemtuzumab not exceed 30 mg and cumulative weekly doses not exceed 90 mg, since higher dosages are associated with an increased incidence of pancytopenia. Close clinical and laboratory monitoring for the development of severe hematologic adverse effects is recommended both during and after discontinuation of therapy.

References

  1. (2001) "Product Information. Campath (alemtuzumab)." Berlex Laboratories

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Drug and food interactions

Moderate

bosutinib food

Applies to: Bosulif (bosutinib)

ADJUST DOSING INTERVAL: Food enhances the oral bioavailability of bosutinib. When given with a high-fat meal, bosutinib peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 1.8- and 1.7-fold, respectively.

GENERALLY AVOID: Coadministration with grapefruit juice is likely to increase the plasma concentrations of bosutinib, which is primarily metabolized by CYP450 3A4. However, the interaction has not been studied. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit.

MANAGEMENT: Bosutinib should be administered with a meal. The consumption of grapefruit, grapefruit juice, and supplements that contain grapefruit extract should be avoided.

References

  1. (2012) "Product Information. Bosulif (bosutinib)." Pfizer U.S. Pharmaceuticals Group

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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.


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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.