Comparative Pharmacology
Head-to-head clinical analysis: AMCILL versus BICILLIN C R 900 300.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMCILL versus BICILLIN C R 900 300.
AMCILL vs BICILLIN C-R 900/300
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ampicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to cell lysis and death.
Penicillin G benzathine and penicillin G procaine are beta-lactam antibiotics that inhibit bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), disrupting peptidoglycan cross-linking, leading to cell lysis via autolytic enzymes. Synergistic action covers both susceptible Gram-positive cocci (e.g., Streptococcus pyogenes) and some Gram-negative cocci (e.g., Neisseria spp.).
250-500 mg orally every 8 hours or 500 mg every 12 hours; for severe infections, up to 1 g every 6 hours intravenously.
Intramuscular injection: 1.2 mL (900,000 units penicillin G benzathine and 300,000 units penicillin G procaine) every 48 hours for 3 doses; for severe infections, up to 2.4 mL (1,800,000/600,000 units) as a single dose.
None Documented
None Documented
1-1.5 hours in normal renal function; prolonged to 7-10 hours in anuria.
0.5-1 hour for penicillin G; prolonged to 3-6 hours in renal impairment. Procaine component has no significant effect on elimination half-life
Renal: 60-80% unchanged; biliary: less than 10%; fecal: small amount.
Renal: 60-90% as unchanged drug; biliary/fecal: minor (less than 10%)
Category C
Category C
Penicillin Antibiotic
Penicillin Antibiotic