Comparative Pharmacology
Head-to-head clinical analysis: PENTIDS 200 versus UNIPEN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: PENTIDS 200 versus UNIPEN.
PENTIDS '200' vs UNIPEN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Penicillin G is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), thereby inhibiting transpeptidation and activating autolytic enzymes.
Unipen (nafcillin) is a penicillinase-resistant penicillin that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), blocking transpeptidation and autolysin inhibition.
Penicillin G benzathine: 1.2 million units intramuscularly as a single dose.
500 mg to 2 g orally or intravenously every 4 to 6 hours; maximum 12 g/day IV for serious infections.
None Documented
None Documented
0.5-1 hour; prolonged in renal impairment; anuric patients up to 10 hours
0.5-1 hour in normal renal function; prolonged to 7-10 hours in anuria or severe renal impairment.
Renal: 60-90% unchanged; biliary/fecal: 10-40%
Renal: 70-90% unchanged via tubular secretion and glomerular filtration; biliary: minor (<10%); fecal: minimal.
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic