Comparative Pharmacology
Head-to-head clinical analysis: AMPICILLIN SODIUM versus POLYMOX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMPICILLIN SODIUM versus POLYMOX.
AMPICILLIN SODIUM vs POLYMOX
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.
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 g IV/IM every 4-6 hours for serious infections; maximum 12 g/day.
250-500 mg orally every 8 hours or 500-875 mg orally every 12 hours; maximum 4 g/day.
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 = 1-1.5 hours in adults; prolonged in renal impairment (up to 12-20 hours in anuria)
Approximately 90% renal excretion via tubular secretion and glomerular filtration; small biliary excretion (<10%); fecal elimination negligible.
Renal (70-80% unchanged via tubular secretion and glomerular filtration); biliary/fecal (small amount, <5%)
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic