Comparative Pharmacology
Head-to-head clinical analysis: AVYCAZ versus CEFOXITIN AND DEXTROSE IN DUPLEX CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AVYCAZ versus CEFOXITIN AND DEXTROSE IN DUPLEX CONTAINER.
AVYCAZ vs CEFOXITIN AND DEXTROSE IN DUPLEX 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.
Cefoxitin is a cephamycin antibiotic that inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), disrupting peptidoglycan cross-linking. It is resistant to many beta-lactamases.
1 vial (ceftazidime 2g and avibactam 0.5g) IV over 2 hours every 8 hours.
1-2 g IV every 6-8 hours. Maximum 12 g/day.
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: 0.7-1.1 hours (normal renal function); prolonged to 5-13 hours in severe renal impairment (CrCl <10 mL/min)
Ceftazidime: primarily renal (80-90% unchanged); avibactam: primarily renal (85-95% unchanged). Fecal excretion <1%.
Renal: 85-90% unchanged via glomerular filtration and tubular secretion; biliary: <5%; fecal: <1%
Category C
Category A/B
Cephalosporin Antibiotic
Cephalosporin Antibiotic