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What is the mechanism of probenecid's interaction with tigecycline?

See the DrugPatentWatch profile for probenecid

  • Mechanism of probenecid: Probenecid inhibits renal organic anion transporters (OAT1/3) in the proximal tubule, reducing the tubular secretion and renal clearance of OAT substrates. This is why probenecid is used to raise levels of certain drugs that are cleared renally by secretion.

  • Tigecycline elimination: Tigecycline is eliminated mainly by biliary/fecal routes; only a small fraction is excreted renally. Therefore it is not a major substrate of renal OAT transporters.

  • Interaction significance: Because tigecycline is not primarily renally cleared, inhibiting OAT transporters with probenecid has little to no clinically meaningful effect on tigecycline pharmacokinetics. No dose adjustment is typically needed, and the interaction is considered not clinically significant.

    If you’re considering coadministration, the takeaway is that probenecid does not meaningfully affect tigecycline exposure.


Other Questions About Probenecid :

Does probenecid increase tigecycline's bioavailability? Can probenecid increase tigecycline's effectiveness? How does probenecid influence tigecycline's pharmacokinetics? Probenecid 500 mg tablet price? Probenecid clinical trials? Does probenecid affect tigecycline's bacterial resistance? Probenecid coupon?