Comparative Pharmacology
Head-to-head clinical analysis: PENICILLIN G SODIUM versus POLYMOX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: PENICILLIN G SODIUM versus POLYMOX.
PENICILLIN G SODIUM vs POLYMOX
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Penicillin G inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidase activity, and activating autolytic enzymes.
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.
2-4 million units intravenously every 4 hours for moderate to severe infections; up to 24 million units/day for severe infections (e.g., meningitis, endocarditis).
250-500 mg orally every 8 hours or 500-875 mg orally every 12 hours; maximum 4 g/day.
None Documented
None Documented
30-60 minutes in normal renal function; prolonged to 7-10 hours in anuria.
Terminal elimination half-life = 1-1.5 hours in adults; prolonged in renal impairment (up to 12-20 hours in anuria)
Primarily renal (60-90% unchanged) via glomerular filtration and tubular secretion; minor biliary/fecal (<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