Comparative Pharmacology
Head-to-head clinical analysis: DYCILL versus UNIPEN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DYCILL versus UNIPEN.
DYCILL vs UNIPEN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Penicillin G benzathine is a slow-release parenteral formulation of penicillin G that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), 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.
250 mg orally every 6 hours or 500 mg orally every 12 hours.
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 (up to 20 hours in severe cases).
0.5-1 hour in normal renal function; prolonged to 7-10 hours in anuria or severe renal impairment.
Renal: approx. 60-80% unchanged by glomerular filtration and tubular secretion. Biliary/fecal: minor (less than 10%).
Renal: 70-90% unchanged via tubular secretion and glomerular filtration; biliary: minor (<10%); fecal: minimal.
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic