text: Pharmacodynamic data suggest that ceftazidime-<< avibactam >> is rapidly bactericidal versus [[ β-lactamase ]]-producing Gram-negative bacilli that are not inhibited by ceftazidime alone.Clinical trials to date have reported that ceftazidime-avibactam is as effective as standard carbapenem therapy in complicated intra-abdominal infection and complicated urinary tract infection, including infection caused by cephalosporin-resistant Gram-negative isolates.