Comparative Pharmacology
Head-to-head clinical analysis: MUPIROCIN versus XIFAXAN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: MUPIROCIN versus XIFAXAN.
MUPIROCIN vs XIFAXAN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Mupirocin reversibly binds to bacterial isoleucyl-tRNA synthetase, inhibiting protein synthesis.
Rifaximin is a non-systemic, gut-selective antibiotic that inhibits bacterial RNA synthesis by binding to the beta-subunit of bacterial DNA-dependent RNA polymerase, thereby reducing bacterial overgrowth and altering gut microbiota composition.
Apply a small amount of 2% ointment or cream to affected area three times daily for 5 to 14 days.
550 mg orally twice daily for traveler's diarrhea; 550 mg orally three times daily for hepatic encephalopathy.
None Documented
None Documented
Intravenous: ~30 min (0.5 h). Topical: systemically absorbed amount negligible, local half-life not defined.
Clinical Note
moderateMupirocin + Picosulfuric acid
"The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Mupirocin."
The terminal elimination half-life for rifaximin after oral administration ranges from 1.8 to 10 hours, with a mean of approximately 6 hours. The half-life is extended in hepatic impairment due to reduced clearance, and no dosage adjustment is recommended for renal impairment.
Renal: <1% unchanged (topical); hepatic metabolism to monic acid, eliminated renally and fecally. After IV administration, 60-70% renal, 20-30% fecal/biliary.
Rifaximin is primarily eliminated unchanged in feces via biliary excretion (approximately 97% of an oral dose). Renal excretion of unchanged drug accounts for <0.4% of the dose. Fecal elimination is the major route.
Category A/B
Category C
Antibiotic
Antibiotic