ChEBI: Avibactam sodium is an organic sodium salt that is the monosodium salt of avibactam. Used in combination with ceftazidime pentahydrate for the treatment of complicated urinary tract infections including pyelonephritis. It has a role as an EC 3.5.2.6 (beta-lactamase) inhibitor, an antibacterial drug and an antimicrobial agent. It contains an avibactam(1-).