Comparative Pharmacology
Head-to-head clinical analysis: BENSULFOID versus BENZACLIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BENSULFOID versus BENZACLIN.
BENSULFOID vs BENZACLIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Unknown; may inhibit Na+/K+-ATPase pump and increase renal sodium excretion
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.
Bensulfoid: not a recognized drug. No data available.
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: 12-18 hours in adults with normal renal function; prolonged to 24-48 hours in moderate renal impairment (CrCl 30-50 mL/min).
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 excretion of unchanged drug: 70-80%; biliary/fecal: 15-20%; metabolic inactivation accounts for the remainder.
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