Comparative Pharmacology
Head-to-head clinical analysis: AMOXICILLIN versus PIPERACILLIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMOXICILLIN versus PIPERACILLIN.
AMOXICILLIN vs PIPERACILLIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Amoxicillin is a beta-lactam antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidase activity, and activating autolytic enzymes.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidation, and activating autolytic enzymes.
250-500 mg orally every 8 hours or 500-875 mg orally every 12 hours; for severe infections, up to 1 g orally every 8 hours.
3.375 g IV every 6 hours (piperacillin-tazobactam); for piperacillin alone, 3 g IV every 6 hours.
None Documented
None Documented
Terminal elimination half-life: 1-1.5 hours in normal renal function. Prolonged to 7-20 hours in end-stage renal disease.
Clinical Note
moderateAmoxicillin + Acemetacin
"Amoxicillin may decrease the excretion rate of Acemetacin which could result in a higher serum level."
Clinical Note
moderateAmoxicillin + Probenecid
"The serum concentration of Probenecid can be increased when it is combined with Amoxicillin."
Clinical Note
moderatePiperacillin + Probenecid
"The serum concentration of Probenecid can be increased when it is combined with Piperacillin."
Clinical Note
moderateAmoxicillin + Fluconazole
0.6-1.2 hours in adults with normal renal function; prolonged to 2-6 hours in renal impairment (CrCl <20 mL/min); requires dose adjustment in renal failure
Renal: 60-80% unchanged via glomerular filtration and tubular secretion. Biliary: up to 20% excreted in bile. Fecal: minimal.
Renal: approximately 70-90% unchanged via glomerular filtration and tubular secretion; biliary: 10-20% excreted unchanged in bile; fecal: minor (<5%)
Category A/B
Category C
Penicillin Antibiotic
Penicillin Antibiotic
"The metabolism of Fluconazole can be decreased when combined with Amoxicillin."