Comparative Pharmacology
Head-to-head clinical analysis: DURACILLIN A S versus PENICILLIN G PROCAINE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DURACILLIN A S versus PENICILLIN G PROCAINE.
DURACILLIN A.S. vs PENICILLIN G PROCAINE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Penicillin G procaine is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to cell lysis and death.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidation, and activating autolytic enzymes.
600,000 units intramuscularly once daily; or 1.2 million units intramuscularly every 12 hours for severe infections.
1.2 million to 2.4 million units intramuscularly once daily for most infections (e.g., uncomplicated pneumonia); for neurosyphilis, 2.4 million units intramuscularly once daily plus probenecid 500 mg orally four times daily for 10-14 days. Administer deep IM injection, not IV.
None Documented
None Documented
0.5-1 hour in adults with normal renal function; prolonged to 7-10 hours in end-stage renal disease
Terminal elimination half-life is approximately 0.5-1 hour in patients with normal renal function. Clinically, the prolonged absorption from the intramuscular depot results in sustained serum concentrations, with effective levels lasting 12-24 hours.
Primarily renal (60-90% unchanged via tubular secretion and glomerular filtration); minor biliary/fecal elimination (<10%)
Primarily renal excretion via tubular secretion and glomerular filtration. Approximately 60-90% of a dose is excreted unchanged in urine within 24 hours. Biliary/fecal elimination is minor (<10%).
Category C
Category A/B
Penicillin Antibiotic
Penicillin Antibiotic