Steele R W, Eyre L B, Bradsher R W, Weinfeld R E, Patel I H, Spicehandler J
Antimicrob Agents Chemother. 1983 Feb;23(2):191-4. doi: 10.1128/AAC.23.2.191.
Pharmacokinetics of ceftriaxone after a single dose of 50 or 75 mg/kg were determined in 30 pediatric patients with bacterial meningitis. Data for doses of 50 and 75 mg/kg, respectively, were as follows (mean +/- standard deviation): maximum plasma concentrations, 230 +/- 64 and 295 +/- 76 mug/ml; elimination rate constant, 0.14 +/- 0.06 and 0.14 +/- 0.04 h(-1); harmonic elimination half-life, 5.8 +/- 2.8 and 5.4 +/- 2.1 h; plasma clearance, 51 +/- 24 and 55 +/- 18 ml/h per kg; volume of distribution, 382 +/- 129 and 387 +/- 56 ml/kg; mean concentration in cerebrospinal fluid 1 to 6 h after infusion, 5.4 and 6.4 mug/ml. A dosage schedule of 50 mg/kg every 12 h for bacterial meningitis caused by susceptible organisms is suggested for pediatric patients over 7 days of age.
在30例细菌性脑膜炎患儿中测定了单次给予50或75mg/kg剂量头孢曲松后的药代动力学。50mg/kg和75mg/kg剂量的数据分别如下(平均值±标准差):血浆最大浓度,230±64和295±76μg/ml;消除速率常数,0.14±0.06和0.14±0.04h⁻¹;调和消除半衰期,5.8±2.8和5.4±2.1h;血浆清除率,51±24和55±18ml/(h·kg);分布容积,382±129和387±56ml/kg;输注后1至6小时脑脊液中的平均浓度,5.4和6.4μg/ml。建议7日龄以上的儿科患者对于由敏感菌引起的细菌性脑膜炎采用每12小时50mg/kg的给药方案。