Comparative Pharmacology
Head-to-head clinical analysis: AVYCAZ versus CEFOTETAN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AVYCAZ versus CEFOTETAN.
AVYCAZ vs CEFOTETAN
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.
Inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins (PBPs), inhibiting transpeptidase activity, and disrupting peptidoglycan cross-linking.
1 vial (ceftazidime 2g and avibactam 0.5g) IV over 2 hours every 8 hours.
1 to 2 g intravenously or intramuscularly every 12 hours. For severe infections, up to 2 g every 12 hours for 5-10 days.
None Documented
None Documented
Clinical Note
moderateCefotetan + Probenecid
"The serum concentration of Probenecid can be increased when it is combined with Cefotetan."
Clinical Note
moderateCefotetan + Ethanol
"The risk or severity of adverse effects can be increased when Cefotetan is combined with Ethanol."
Clinical Note
moderateCefotetan + Picosulfuric acid
"The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Cefotetan."
Clinical Note
moderateCefotetan + Carbocisteine
Ceftazidime: ~2.8 hours; avibactam: ~2.7 hours. Extended in renal impairment (e.g., CrCl <50 mL/min requires dose adjustment).
3-4.5 hours (6-8 hours in renal impairment).
Ceftazidime: primarily renal (80-90% unchanged); avibactam: primarily renal (85-95% unchanged). Fecal excretion <1%.
Renal (80-90% unchanged), biliary (small amount, up to 20% in bile), fecal (<5%).
Category C
Category C
Cephalosporin Antibiotic
Cephalosporin Antibiotic
"The risk or severity of adverse effects can be increased when Cefotetan is combined with Carbocisteine."