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. 2016 Jun 20;60(7):3976–3979. doi: 10.1128/AAC.00589-16

TABLE 2.

Plasma drug concentrations and half-lives of antibiotics used for treatment

Antibiotic Mean concn (μg/ml) ± SD (range) (no. of samples)a
Half-life (h)
1 h after dosing Trough
Daptomycin 140 ± 28 (103–184) (7) 1.4 ± 0.6 (0.7–2.4) (8) 3.3
Ceftriaxone 300 ± 76 (209–340) (5) 2.8 ± 3.1 (0.7–8.3) (5) 3.4
Ertapenem 214 ± 40 (176–269) (4) 0.4 ± 0.2 (0.1–0.6) (4) 2.5
a

One-hour samples were obtained on day 1 or 2. Trough samples were obtained at the time of sacrifice, ∼24 h after the last dose.