Aztreonam

**Definition:** 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.

**Tree numbers:** - D02.065.589.099.500.044 - D02.886.108.500.044 - D03.383.411.350.044 - D03.633.100.300.500.044

**Synonyms:** - Azthreonam - Az-threonam