Comparative Pharmacology
Head-to-head clinical analysis: COTRIM versus MUPIROCIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: COTRIM versus MUPIROCIN.
COTRIM vs MUPIROCIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
COTRIM is a combination of trimethoprim and sulfamethoxazole; sulfamethoxazole inhibits dihydropteroate synthase, and trimethoprim inhibits dihydrofolate reductase, sequentially blocking bacterial folate synthesis.
Mupirocin reversibly binds to bacterial isoleucyl-tRNA synthetase, inhibiting protein synthesis.
1 double-strength tablet (160 mg trimethoprim + 800 mg sulfamethoxazole) orally every 12 hours for 5-14 days; 15-20 mg/kg/day (based on trimethoprim) IV divided every 6-8 hours for severe infections.
Apply a small amount of 2% ointment or cream to affected area three times daily for 5 to 14 days.
None Documented
None Documented
Sulfamethoxazole: 9-11 hours (normal renal function); trimethoprim: 8-10 hours. Extended in renal impairment (SMX up to 30h, TMP up to 24h).
Clinical Note
moderateMupirocin + Picosulfuric acid
"The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Mupirocin."
Intravenous: ~30 min (0.5 h). Topical: systemically absorbed amount negligible, local half-life not defined.
Renal: 50-70% unchanged sulfamethoxazole, 15-30% N4-acetylated metabolite; trimethoprim: 50-60% unchanged, 10-20% metabolites. Biliary/fecal: minimal.
Renal: <1% unchanged (topical); hepatic metabolism to monic acid, eliminated renally and fecally. After IV administration, 60-70% renal, 20-30% fecal/biliary.
Category C
Category A/B
Antibiotic
Antibiotic