Comparative Pharmacology
Head-to-head clinical analysis: DURACILLIN A S versus UTICILLIN VK.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DURACILLIN A S versus UTICILLIN VK.
DURACILLIN A.S. vs UTICILLIN VK
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.
Uticillin VK (penicillin V potassium) is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs) in the bacterial cytoplasmic membrane, thereby inhibiting transpeptidation and autolysin inhibition, leading to cell lysis and death.
600,000 units intramuscularly once daily; or 1.2 million units intramuscularly every 12 hours for severe infections.
250-500 mg orally every 6-8 hours for 10 days for streptococcal pharyngitis; 250-500 mg orally every 6 hours for pneumococcal infections.
None Documented
None Documented
0.5-1 hour in adults with normal renal function; prolonged to 7-10 hours in end-stage renal disease
0.5-1.0 hour (prolonged in renal impairment; e.g., up to 10 hours in anuria)
Primarily renal (60-90% unchanged via tubular secretion and glomerular filtration); minor biliary/fecal elimination (<10%)
Renal: 70-80% unchanged via tubular secretion and glomerular filtration; biliary/fecal: minor (about 10%)
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic