Comparative Pharmacology
Head-to-head clinical analysis: NAFCILLIN SODIUM versus PENTIDS 200.
Peer-Reviewed Evidence
Head-to-head clinical analysis: NAFCILLIN SODIUM versus PENTIDS 200.
NAFCILLIN SODIUM vs PENTIDS '200'
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Nafcillin exerts bactericidal activity by inhibiting bacterial cell wall synthesis via binding to penicillin-binding proteins (PBPs), thereby disrupting peptidoglycan cross-linking. It is resistant to staphylococcal beta-lactamases.
Penicillin G is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby inhibiting transpeptidation and activating autolytic enzymes.
1-2 g IV every 4 hours; or 1-2 g IM every 4-6 hours.
Penicillin G benzathine: 1.2 million units intramuscularly as a single dose.
None Documented
None Documented
Approximately 0.5 hour (30 minutes) in adults with normal renal function; prolonged to 1-2 hours in neonates or severe renal impairment. Clinically relevant for dosing every 4-6 hours.
0.5-1 hour; prolonged in renal impairment; anuric patients up to 10 hours
Primarily renal (30-40% unchanged) and hepatic/biliary elimination. Approximately 10-15% excreted in bile via feces.
Renal: 60-90% unchanged; biliary/fecal: 10-40%
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic