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Effect of castration procedure on the pharmacokinetics of meloxicam in goat kids
Author(s) -
Tekeli Ibrahim Ozan,
Turk Erdinc,
Durna Corum Duygu,
Corum Orhan,
Uney Kamil
Publication year - 2020
Publication title -
journal of veterinary pharmacology and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.527
H-Index - 60
eISSN - 1365-2885
pISSN - 0140-7783
DOI - 10.1111/jvp.12872
Subject(s) - meloxicam , castration , xylazine , pharmacokinetics , pharmacodynamics , medicine , anesthesia , zoology , pharmacology , endocrinology , biology , ketamine , hormone
The aim of this study was to determine the changes in the pharmacokinetics of meloxicam in goat kids who were castrated following the administration of xylazine. Six goat kids were used for the study. The study was performed in two periods according to a longitudinal study, with a 15‐day washout period between periods. In the first period (Control group), 1 mg/kg meloxicam was administered by i.v. route to kids. In the second period (Castration group), the kids were sedated with 0.3 mg/kg xylazine and castration was performed following meloxicam administration. Plasma meloxicam concentration was analyzed using HPLC‐UV, and pharmacokinetic parameters were calculated by noncompartmental model. In the control group following the administration of meloxicam, mean elimination half‐life ( t 1/2 ʎz ), area under the concentration–time curve (AUC 0−∞ ), total body clearance (Cl T ), and volume of distribution at steady‐state ( V dss ) were 13.50 ± 0.62 hr, 41.10 ± 2.86 hr µg/ml, 24.43 ± 1.75 ml hr −1  kg −1 , and 0.45 ± 0.03 L/kg, respectively. In the castration group, the t 1/2 ʎz of meloxicam prolonged, AUC 0−∞ increased, and Cl T and V dss decreased. In conclusion, the excretion of meloxicam from the body slowed and the t 1/2 ʎz was prolonged in the castrated goat kids following xylazine administration. However, there is a need to determine the pharmacodynamics of meloxicam in castrated goat kids.

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