Comparative Pharmacology
Head-to-head clinical analysis: BACTOCILL versus GEOCILLIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BACTOCILL versus GEOCILLIN.
BACTOCILL vs GEOCILLIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
BACTOCILL (nafcillin) is a penicillinase-resistant penicillin that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby inhibiting transpeptidation and autolysin inhibitors. Active against Staphylococcus aureus and other gram-positive bacteria.
Geocillin (carbenicillin indanyl sodium) is a penicillin antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to cell lysis and death. It exhibits bactericidal activity against susceptible gram-negative and gram-positive bacteria.
250-500 mg orally every 6 hours or 1-2 g intravenously every 4-6 hours
250-500 mg orally every 6 hours.
None Documented
None Documented
0.5-0.8 hours; prolonged to 2-4 hours in severe renal impairment
1.2 hours (normal renal function); prolonged to 7-10 hours in severe renal impairment (CrCl <10 mL/min).
Renal: 60-70% unchanged; biliary: 20-30% as active metabolite; fecal: 5-10%
Primarily renal (70-80% unchanged via tubular secretion and glomerular filtration); minor biliary/fecal (<5%).
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic