Comparative Pharmacology
Head-to-head clinical analysis: POLYCILLIN PRB versus UNIPEN IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: POLYCILLIN PRB versus UNIPEN IN PLASTIC CONTAINER.
POLYCILLIN-PRB vs UNIPEN IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
POLYCILLIN-PRB combines ampicillin and probenecid. Ampicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs). Probenecid inhibits renal tubular secretion of ampicillin, increasing its plasma concentration.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidase activity and peptidoglycan cross-linking.
250-500 mg orally every 6 hours or 500 mg-1 g intramuscularly every 6-8 hours.
250-500 mg intravenously or intramuscularly every 4-6 hours. Maximum dose 12 g per day.
None Documented
None Documented
Terminal elimination half-life: 1-1.5 hours in patients with normal renal function; prolonged to 7-10 hours in anuria.
0.5-1 hour (normal renal function); prolonged to 2-5 hours in renal impairment
Renal: 60-80% unchanged via glomerular filtration and tubular secretion; Biliary/fecal: 20-40% as metabolites and unchanged drug.
Renal: 60-90% unchanged via glomerular filtration and tubular secretion; biliary/fecal: minor, <10%
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic