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Drug Interactions between boceprevir and brincidofovir

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

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Interactions between your drugs

Major

boceprevir brincidofovir

Applies to: boceprevir and brincidofovir

GENERALLY AVOID: Coadministration with inhibitors of the hepatic influx transporters organic anion transporting polypeptides (OATP) 1B1 and 1B3 may increase the plasma concentrations and adverse effects of brincidofovir. In clinical studies, coadministration with a single 600 mg oral dose of the OATP1B1 and 1B3 inhibitor cyclosporine increased the mean systemic exposure (AUC) and peak plasma concentration (Cmax) of brincidofovir by 374% and 269%, respectively.

MANAGEMENT: The manufacturer advises that, where possible, coadministration of brincidofovir with OATP1B1 or 1B3 inhibitors should be avoided and alternative medicines considered. However, if concomitant use is necessary, administration of the OATP1B1 or 1B3 inhibitor should be postponed by at least 3 hours after the administration of brincidofovir. Patients should also be closely monitored for brincidofovir-related adverse reactions such as elevations in hepatic transaminases and bilirubin, diarrhea, nausea, vomiting, and abdominal pain.

References

  1. (2022) "Product Information. Tembexa (brincidofovir)." Chimerix, Inc.

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Drug and food interactions

Moderate

boceprevir food

Applies to: boceprevir

ADJUST DOSING INTERVAL: Food significantly enhances the oral bioavailability of boceprevir. When given at 800 mg three times daily with food, boceprevir exposure increased by up to 65% relative to administration in the fasting state. The bioavailability of boceprevir was similar regardless of meal type (e.g., high-fat versus low-fat) or whether taken 5 minutes prior to eating, during a meal, or immediately following completion of the meal. Therefore, boceprevir may be taken without regard to either meal type or timing of the meal.

MANAGEMENT: To ensure maximal oral absorption, boceprevir should be administered with a meal or light snack.

References

  1. (2011) "Product Information. Victrelis (boceprevir)." Schering-Plough Corporation

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Moderate

brincidofovir food

Applies to: brincidofovir

ADJUST DOSING INTERVAL: Administration with food decreases the oral bioavailability of brincidofovir. According to the product labeling, administration of brincidofovir tablets with a low-fat meal (approximately 400 calories, 25% of calories from fat) was associated with a reduction in the systemic exposure (AUC) and peak plasma concentration (Cmax) of brincidofovir by 31% and 49%, respectively, compared to administration under fasting. However, no clinically meaningful changes in intracellular concentrations of cidofovir diphosphate were observed. The effect of food on the oral suspension formulation has not been evaluated.

MANAGEMENT: Brincidofovir oral tablets and suspension should be taken on an empty stomach. If necessary, the oral tablets may be taken with a low-fat meal.

References

  1. (2022) "Product Information. Tembexa (brincidofovir)." Chimerix, Inc.

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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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