Comparative Pharmacology
Head-to-head clinical analysis: AMPICILLIN SODIUM versus POLYCILLIN N.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMPICILLIN SODIUM versus POLYCILLIN N.
AMPICILLIN SODIUM vs POLYCILLIN-N
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ampicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to cell lysis and death.
Ampicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), disrupting peptidoglycan cross-linking, and activating autolytic enzymes. It is bactericidal against susceptible organisms.
1-2 g IV/IM every 4-6 hours for serious infections; maximum 12 g/day.
1-2 g IV/IM every 4-6 hours
None Documented
None Documented
Terminal elimination half-life ~1 hour in healthy adults; prolonged to 2–5 hours in renal impairment (CrCl <10 mL/min) and up to 7–20 hours in anuria; neonatal half-life 2–4 hours.
Terminal elimination half-life: 0.5-1 hour (normal renal function); increases to 7-10 hours in anuria. Prolonged in neonates (2-4 hours).
Approximately 90% renal excretion via tubular secretion and glomerular filtration; small biliary excretion (<10%); fecal elimination negligible.
Renal: 60-80% unchanged via glomerular filtration and tubular secretion. Biliary: ~20% excreted in bile and feces. Small amount metabolized to penicilloic acid.
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic