Comparative Pharmacology
Head-to-head clinical analysis: BENZACLIN versus CLINDA DERM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BENZACLIN versus CLINDA DERM.
BENZACLIN vs CLINDA-DERM
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
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.
Clindamycin binds to the 50S ribosomal subunit of bacteria, inhibiting protein synthesis by interfering with peptide chain formation. It has bacteriostatic activity against susceptible organisms.
Topical gel applied once or twice daily to affected areas. Each gram contains 1% clindamycin and 5% benzoyl peroxide.
Topical: Apply a thin film to affected area twice daily. For acne vulgaris, available as 1% gel, lotion, or solution.
None Documented
None Documented
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.
2-4 hours (terminal half-life) in adults with normal renal function; prolonged in hepatic impairment (up to 8-12 hours) and severe renal impairment.
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.
Primarily renal (10-20% unchanged; remainder as metabolites) and biliary/fecal (approximately 40-50% of dose as metabolites in feces).
Category C
Category C
Topical Antibiotic
Topical Antibiotic