Comparative Pharmacology
Head-to-head clinical analysis: ELASE CHLOROMYCETIN versus MAFENIDE ACETATE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ELASE CHLOROMYCETIN versus MAFENIDE ACETATE.
ELASE-CHLOROMYCETIN vs MAFENIDE ACETATE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Elase-Chloromycetin is a combination product containing fibrinolysin and desoxyribonuclease (Elase) for enzymatic debridement, and chloramphenicol (Chloromycetin), a bacteriostatic antibiotic that inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit.
Mafenide acetate is a sulfonamide antibiotic that inhibits bacterial folic acid synthesis by competitively antagonizing para-aminobenzoic acid (PABA), thereby preventing bacterial growth. It has broad-spectrum activity against gram-negative and gram-positive organisms, including Pseudomonas aeruginosa.
Topical application: Apply thin layer to affected area 2-3 times daily.
Apply topically as a thin layer to affected areas once or twice daily. The dosage form is an 11.1% cream or solution. The cream is applied using a sterile gloved hand; the solution is applied with a sterile spray or brush.
None Documented
None Documented
Chloramphenicol has a terminal elimination half-life of 1.5 to 4.0 hours in adults with normal renal and hepatic function. In neonates, half-life can be prolonged to 24-48 hours, necessitating dose adjustment. Elase has no systemic half-life as it acts locally.
Approximately 45 minutes (range 30-60 minutes) for the parent compound; the metabolite p-CBS has a longer half-life of about 4 hours.
Chloramphenicol is primarily excreted renally (approximately 90% as inactive metabolites). Fecal excretion accounts for less than 1% of the dose. Biliary elimination is negligible. Elase (fibrinolysin and desoxyribonuclease) is locally degraded and not systemically absorbed, thus its excretion is irrelevant.
Renal: approximately 80% excreted unchanged in urine; the remainder is metabolized to p-carboxybenzene sulfonamide (p-CBS) which is also renally excreted.
Category C
Category C
Topical Antibiotic and Debriding Agent
Topical Antibiotic