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Pharmacokinetics of Enrofloxacin in Plasma, Urine, and Feces of Donkey (Equus asinus) after a Single Intragastric Administration

文献类型： 外文期刊

作者： Yang, Bowen 1 ; Liu, Shijie 1 ; Cheng, Jie 2 ; Qu, Honglei 1 ; Guo, Yanxin 1 ; Ji, Chuanliang 2 ; Wang, Yantao 2 ; Zhao, Shancang 3 ; Huang, Shimeng 1 ; Zhao, Lihong 1 ; Ma, Qiugang 1 ;

作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, State Key Lab Anim Nutr, Beijing 100193, Peoples R China

2.Dong E E Jiao Co Ltd, Natl Engn Res Ctr Gelatin Based Tradit Chinese Med, Liaocheng 252201, Peoples R China

3.Shandong Acad Agr Sci, Jinan 250100, Peoples R China

关键词： enrofloxacin; ciprofloxacin; pharmacokinetics; donkey; urinary excretion

期刊名称：ANTIBIOTICS-BASEL （ 影响因子：4.8； 五年影响因子：4.9 ）

ISSN： 2079-6382

年卷期： 2024 年 13 卷 4 期

页码：

收录情况： SCI

摘要： Enrofloxacin is a broad-spectrum antimicrobial agent, but the study of its pharmacokinetics/pharmacodynamics (PKs/PDs) in donkeys is rarely reported. The present study aimed to investigate the pharmacokinetics of enrofloxacin administered intragastrically, and to study the pharmacokinetics of enrofloxacin and its metabolite ciprofloxacin in plasma, urine, and feces, and the PK/PD parameters were investigated to provide a rationale for enrofloxacin treatment in donkeys. A total of five healthy donkeys were selected for intragastric administration of 7.5 mgkg(-1) BW of enrofloxacin by gavage, and blood, urine, and fecal samples were collected. The results showed that the elimination half-life of plasma enrofloxacin was 11.40 +/- 6.40 h, T-max was 0.55 +/- 0.12 h, C-max was 2.46 +/- 0.14 mgL-1, AUC(0-infinity) was 10.30 +/- 3.37 mgL-1h, and mean residence time (MRT) was 7.88 +/- 1.26 h. The T-max of plasma ciprofloxacin was 0.52 +/- 0.08 h, C-max was 0.14 +/- 0.03 mgL-1, and AUC(0-infinity) was 0.24 +/- 0.16 mgL-1h. Urinary C-max was 38.18 +/- 8.56 mgL-1 for enrofloxacin and 15.94 +/- 4.15 mgL-1 for ciprofloxacin. The total enrofloxacin and ciprofloxacin recovered amount in urine was 7.09 +/- 2.55% of the dose for 144 h after dosing. The total enrofloxacin and ciprofloxacin recovered amount in feces was 25.73 +/- 10.34% of the dose for 144 h after dosing. PK/PD parameters were also examined in this study, based on published MICs. In conclusion, 7.5 mg/kg BW of enrofloxacin administered intragastrically to donkeys was rapidly absorbed, widely distributed, and slowly eliminated in their bodies, and was predicted to be effective against bacteria with MICs < 0.25 mgL-1.

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