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]
  1. 10.1016/s0025-7125(16)30036-0
  2. 10.1016/s0025-7125(16)30036-0