TABLE 3.

Activity of 11 non-β-lactam agents against 195 randomly selected isolates of Acinetobacter spp.

Antimicrobial agentMIC (μg/ml)% Susceptible isolates
50%90%Range
Ciprofloxacin1.0>16≤0.12->1656.4
Levofloxacin≤0.2532≤0.25->3260.5
Gatifloxacin≤0.2532≤0.25->3260.0
Gentamicin2>32≤0.25->3258.0
Tobramycin1.0>32≤0.25->3269.7
Amikacin464≤1.0->12880.0
Tetracycline2>32≤0.25->3261.5
Doxycycline0.25>16≤0.12->1674.9
Imipenem0.258≤0.12->1689.2
Meropenem1.016≤0.25->3280.5
Polymyxin B≤0.52≤0.5-1691.3a
Trimethoprim- sulfamethoxazole0.5>8≤0.25->858.5
Sulbactam81280.5->128b
Tazobactam161280.5->128
  • a Using a susceptible category of ≤2 μg/ml (see reference 6).

  • b —, no interpretive criteria are available.