Comparative Pharmacology
Head-to-head clinical analysis: OXACILLIN SODIUM versus POLYMOX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: OXACILLIN SODIUM versus POLYMOX.
OXACILLIN SODIUM vs POLYMOX
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Oxacillin is a penicillinase-resistant beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby blocking the transpeptidation step in peptidoglycan cross-linking. It is resistant to staphylococcal beta-lactamase.
Amoxicillin is a bactericidal antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs) and inhibiting transpeptidase activity, leading to cell lysis.
1-2 grams IV every 4-6 hours.
250-500 mg orally every 8 hours or 500-875 mg orally every 12 hours; maximum 4 g/day.
None Documented
None Documented
0.3-0.8 hours in adults with normal renal function; prolonged to 1-2 hours in neonates and 2-5 hours in patients with severe renal impairment (CrCl <10 mL/min)
Terminal elimination half-life = 1-1.5 hours in adults; prolonged in renal impairment (up to 12-20 hours in anuria)
Renal (70-80% unchanged by tubular secretion and glomerular filtration); biliary (minor, approximately 10%)
Renal (70-80% unchanged via tubular secretion and glomerular filtration); biliary/fecal (small amount, <5%)
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic