Delafloxacin (RX-3341; WQ-3034; ABT492) 是一種廣譜氟喹諾酮類抗生素。Delafloxacin 具有廣泛的活性,對耐藥性的金黃色葡萄球菌,肺炎鏈球菌和肺炎克雷伯菌都有效。
Delafloxacin (the total daily doses vary from 0.156 to 640 mg/kg/24 h, subcutaneous injection) is highly effective against S. aureus. Against all four strains are observed a decrease of 1.5 to 2.2 log10 CFU in organism burden from untreated controls at even the lowest dose studied, and for two strains (MW2 and R2527) there is net bactericidal activity at the lowest dose. At the maximal doses studied, there is a >4-log10 kill from initial burden for all S. aureus strains[1].Delafloxacin (2.5, 10, 40, and 160 mg/kg; subcutaneous injection, 24 h) has moderate terminal elimination half-life (t1/2=0.68 h, 0.79 h, 0.69 h and 1.0 h for 2.5 mg/kg, 10 mg/kg, 40 mg/kg, and 160 mg/kg, respectively)[1].
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