Comparative Pharmacology
Head-to-head clinical analysis: AVYCAZ versus CEFEPIME HYDROCHLORIDE IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AVYCAZ versus CEFEPIME HYDROCHLORIDE IN PLASTIC CONTAINER.
AVYCAZ vs CEFEPIME HYDROCHLORIDE IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
AVYCAZ is a combination of ceftazidime, a cephalosporin beta-lactam antibiotic, and avibactam, a non-beta-lactam beta-lactamase inhibitor. Ceftazidime inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), leading to cell lysis. Avibactam protects ceftazidime from degradation by certain beta-lactamases, including Ambler class A, class C, and some class D enzymes.
Cefepime is a fourth-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), particularly PBP 3 in Gram-negative bacteria, leading to cell lysis and death.
1 vial (ceftazidime 2g and avibactam 0.5g) IV over 2 hours every 8 hours.
1-2 g IV every 8-12 hours for moderate to severe infections; for febrile neutropenia, 2 g IV every 8 hours.
None Documented
None Documented
Ceftazidime: ~2.8 hours; avibactam: ~2.7 hours. Extended in renal impairment (e.g., CrCl <50 mL/min requires dose adjustment).
Terminal elimination half-life ≈2.0–2.3 hours in healthy adults; prolonged to 13–26 hours in severe renal impairment (CrCl <10 mL/min); relevant for dosing interval adjustment.
Ceftazidime: primarily renal (80-90% unchanged); avibactam: primarily renal (85-95% unchanged). Fecal excretion <1%.
Primarily renal (≈85% unchanged via glomerular filtration and tubular secretion); minimal biliary/fecal (<5%).
Category C
Category A/B
Cephalosporin Antibiotic
Cephalosporin Antibiotic