Comparative Pharmacology
Head-to-head clinical analysis: BACTROBAN versus BENZACLIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BACTROBAN versus BENZACLIN.
BACTROBAN vs BENZACLIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Binds to isoleucyl-tRNA synthetase, inhibiting bacterial protein synthesis.
BENZACLIN (clindamycin 1% and benzoyl peroxide 5%) is a combination antibacterial agent. Clindamycin is a lincosamide antibiotic that binds to the 50S ribosomal subunit of bacteria, inhibiting protein synthesis and reducing Propionibacterium acnes growth. Benzoyl peroxide has bactericidal and keratolytic properties; it releases free radical oxygen species that oxidize bacterial proteins, decreasing P. acnes, and also causes drying and peeling of the skin.
Mupirocin (Bactroban) 2% ointment or cream applied topically to affected area three times daily for 5 to 14 days. For intranasal use: 0.5 g of 2% ointment applied to each nostril twice daily for 5 days.
Topical gel applied once or twice daily to affected areas. Each gram contains 1% clindamycin and 5% benzoyl peroxide.
None Documented
None Documented
Terminal elimination half-life: 1-1.5 hours in adults with normal renal function; prolonged in renal impairment (up to 30 hours in end-stage renal disease)
After topical application, plasma concentrations of clindamycin are negligible; the systemic half-life of clindamycin from absorbed fraction is approximately 2.5-3 hours in adults. However, due to minimal systemic absorption, the terminal half-life is not clinically relevant for topical therapy.
Renal (90-95% unchanged), with minor biliary/fecal elimination (<5%)
Benzaclin (clindamycin 1% - benzoyl peroxide 5%) is a topical formulation; systemic absorption is minimal. After topical application, less than 1% of clindamycin is absorbed. Absorbed clindamycin is primarily excreted in urine (10% as active drug, 90% as metabolites) and feces (<5%). Benzoyl peroxide is metabolized to benzoic acid, which is conjugated and excreted in urine. Overall, renal excretion accounts for the majority of clearance of absorbed components.
Category C
Category C
Topical Antibiotic
Topical Antibiotic