Drug Interaction Report

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with pretomanid may increase the plasma concentrations and the risk of adverse effects of drugs that are substrates of breast cancer resistance protein (BCRP), organic anion-transporting polypeptide (OATP1B3), and/or P-glycoprotein (P-gp). The proposed mechanism, based on in vitro data, is decreased clearance due to pretomanid-mediated inhibition of BCRP, OATP1B3, and/or P-gp. The clinical significance is unknown as data are limited and conflicting.

MANAGEMENT: Until more information is available, the manufacturers of pretomanid recommend that clinicians should be aware of the potential for enhanced pharmacologic effects with drugs that are substrates of BCRP, OATP1B3, and/or Pg-p, particularly those with a narrow therapeutic range, when pretomanid is coadministered. Dosage adjustments as well as clinical and laboratory monitoring of the BCRP, OATP1B3, and/or P-gp substrate drug should be considered whenever pretomanid is added to or withdrawn from therapy with these drugs. Patients should be monitored for the development of adverse effects.

Grapefruit juice can increase the blood levels and effects of everolimus. You should not drink grapefruit juice or eat grapefruits during your treatment with everolimus. Orange juice is not expected to interact.

Food can enhance the levels of pretomanid in your body. Pretomanid should be taken just after eating food. Do not take it on an empty stomach. This will make it easier for your body to absorb the medication. Swallow tablets whole. Do not crush, chew, or break the tablets.