Comparative Pharmacology
Head-to-head clinical analysis: SULFACETAMIDE SODIUM versus SULSTER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: SULFACETAMIDE SODIUM versus SULSTER.
SULFACETAMIDE SODIUM vs SULSTER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Competitively inhibits dihydropteroate synthase, blocking folic acid synthesis in susceptible bacteria.
Sulster is a sulfonamide antibiotic that inhibits bacterial dihydropteroate synthase, blocking folate synthesis and thus bacterial DNA replication.
1-2 drops of 10-30% solution into the conjunctival sac every 2-3 hours initially, tapering as infection resolves. Ointment: 0.5-inch ribbon into conjunctival sac every 3-4 hours and at bedtime.
2.5 mg orally twice daily.
None Documented
None Documented
7-12.8 hours (prolonged in renal impairment; requires dosing adjustment in CrCl <50 mL/min).
Terminal half-life 3.5-4.5 hours in normal renal function; prolonged to 10-15 hours with creatinine clearance <30 mL/min.
Renal: 85-95% unchanged via glomerular filtration and tubular secretion. Biliary/fecal: <5%.
Primarily renal (60-70% unchanged), with 20-30% as glucuronide conjugate; biliary/fecal <10%.
Category A/B
Category C
Sulfonamide Antibiotic
Sulfonamide Antibiotic