Comparative Pharmacology
Head-to-head clinical analysis: OXACILLIN SODIUM versus PROSTAPHLIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: OXACILLIN SODIUM versus PROSTAPHLIN.
OXACILLIN SODIUM vs PROSTAPHLIN
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.
Prostaphlin (oxacillin) is a penicillinase-resistant penicillin that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), specifically PBP1 and PBP3, leading to inhibition of transpeptidation and cell lysis. It is resistant to staphylococcal beta-lactamases.
1-2 grams IV every 4-6 hours.
250-500 mg IM or IV every 4-6 hours for moderate to severe infections. For oral use: 250-500 mg every 6 hours on empty stomach.
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)
0.4-0.8 hours in adults with normal renal function; prolonged in renal impairment (up to 4-6 hours in anuria).
Renal (70-80% unchanged by tubular secretion and glomerular filtration); biliary (minor, approximately 10%)
Primarily renal (70-80% unchanged via glomerular filtration and tubular secretion); minor biliary/fecal elimination (<10%).
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic