Journal Title
Title of Journal: Vet Res Commun
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Abbravation: Veterinary Research Communications
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Publisher
Springer Netherlands
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Authors: J J de Lucas M I San Andrés F González R Froyman C Rodríguez
Publish Date: 2008/02/05
Volume: 32, Issue: 4, Pages: 275-279
Abstract
This study compared pharmacokinetic profiles in cattle dosed subcutaneously with two different formulations of enrofloxacin 5 and 10 at a dose of 5 mg/kg Plasma concentrations of enrofloxacin and its active metabolite ciprofloxacin were determined by a HPLC/uv method The pharmacokinetic parameters of enrofloxacin and its metabolite were similar in both injectable formulations Enrofloxacin peak plasma concentration 5 073 ± 032 10 060 ± 014 μg/mL was reached at 121 ± 052 and 138 ± 052 h to 5 and 10 respectively The terminal halflive and area under curve were 234 ± 046 and 259 ± 046 h and 309 ± 081 and 293 ± 058 μg·h/mL to 5 and 10 respectively The AUC/MIC90 and Cmax/MIC90 ratios for both formulations exceed the proposed threshold values for optimized efficacy and minimized resistance development whilst treating infections or septicaemia caused by P multocida and E coliThe authors thank Mr Mariano DíazFlores for his technical assistance Thanks to the staff of the Biblioteca de la Facultad de Veterinaria BUCM for their invaluable help This study was supported by a grant from the Bayer Health Care AG 348/2001 Art 83 LRU/UCM Special thanks to Mr Enrique Rierola from Química Farmacéutica Bayer SA Barcelona Spain and Ms Isabel Uriarte Inchausti DVM
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