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Drug Interactions between dimethyl fumarate and Raptiva

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

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Interactions between your drugs

Moderate

efalizumab dimethyl fumarate

Applies to: Raptiva (efalizumab) and dimethyl fumarate

GENERALLY AVOID: The use of efalizumab with other immunosuppressive or myelosuppressive agents may increase the risk of infections. Efalizumab alone can cause serious infections requiring hospitalization, 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: The safety and efficacy of efalizumab in combination with other immunosuppressive agents or phototherapy have not been evaluated. Patients receiving other immunosuppressive agents should not be treated with efalizumab because of the possibility of excessive immunosuppression. The duration of the period following treatment with efalizumab before one should consider starting other immunosuppressive therapy has not been evaluated.

References

  1. (2003) "Product Information. Raptiva (efalizumab)." Genentech

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Drug and food interactions

Minor

dimethyl fumarate food

Applies to: dimethyl fumarate

Food does not significantly affect the oral bioavailability of dimethyl fumarate. Administration of dimethyl fumarate with a high-fat, high-calorie meal did not affect the systemic exposure (AUC) to its active metabolite, monomethyl fumarate (MMF), but decreased its peak plasma concentration (Cmax) by 40% and prolonged the time to reach peak concentration (Tmax) from 2.0 hours to 5.5 hours. In the study, the incidence of flushing was reduced by approximately 25% in the fed state. Dimethyl fumarate may be taken with or without food; however, taking it with food may help reduce flushing.

References

  1. (2013) "Product Information. Tecfidera (dimethyl fumarate)." Biogen

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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.