Definitions for aztreonam
an antibiotic (trade name Azactam) used against severe infections; has minimal side effects
A synthetic monobactam originally isolated from Chromobacterium violaceum, similar in action to penicillin.
U.S. National Library of Medicine
A monocyclic beta-lactam antibiotic originally isolated from Chromobacterium violaceum. It is resistant to beta-lactamases and is used in gram-negative infections, especially of the meninges, bladder, and kidneys. It may cause a superinfection with gram-positive organisms.