Zinforo Drug Interactions

ceftaroline fosamil


Full Prescribing Info
Drug Interactions
No clinical drug-drug interaction studies have been conducted with ceftaroline.
The interaction potential of ceftaroline on drugs metabolised by CYP450 enzymes is expected to be low, since ceftaroline is not an inhibitor (CYP1A1, CYP1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP2E1 and CYP3A4) nor an inducer (CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, or CYP3A4/5) of CYP450 enzymes in vitro. Ceftaroline is not metabolised by CYP450 enzymes in vitro, so co-administered CYP450 inducers or inhibitors are unlikely to influence the pharmacokinetics of ceftaroline.
In vitro, ceftaroline is not transported by efflux transporters P-gp or BCRP. Ceftaroline does not inhibit P-gp, therefore an interaction with substrates, such as digoxin, is not expected. Ceftaroline is a weak inhibitor of BCRP, but the effect is too small to be clinically relevant. In vitro studies demonstrated that ceftaroline is not a substrate of, nor did it inhibit the renal uptake transporters OCT2, OAT1, and OAT3; drug-drug interactions with drugs that inhibit active renal secretion (e.g. probenecid) or with drugs that are substrates of these transporters would therefore not be expected.
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