ID Board Review/Antimicrobial Therapy/Antibacterials/β-Lactams/Monobactams/Aztreonam
- Aztreonam has good gram-negative coverage
- It's often used for patients with beta-lactam allergies [1]
- The one exception is ceftazidime, which has the same side chain, and can cause cross-reactivity
- It can also be used as an alternative to aminoglycosides, since aztreonam isn't ototoxic or nephrotoxic[2]