Disposition of sodium salicylate, flunixin and meloxicam after intravenous administration in broiler chickens

J Vet Pharmacol Ther. 2002 Dec;25(6):449-53. doi: 10.1046/j.1365-2885.2002.00441.x.

Abstract

Three nonsteroidal anti-inflammatory drugs (NSAIDs) [sodium salicylate, flunixin (FLU) and meloxicam (MEL)] were administered intravenously to broiler chickens. Plasma concentrations were determined by high-performance liquid chromatography methods and pharmacokinetic parameters were calculated. After intravenous administration of sodium salicylate (50 mg/kg), FLU (1.1 mg/kg) and MEL (0.5 mg/kg), these drugs were eliminated from plasma with a mean half-life of 04.04, 05.45 and 03.20 h, respectively. Apparent volumes of distribution (0.39, 0.08 and 0.12 L/kg, respectively) indicated that tissue distribution was limited for the three drugs. Total body clearance was 70 mL/h.kg for sodium salicylate and 10 and 25 mL/kg.h for FLU and MEL, respectively. Based on the pharmacokinetic parameters these NSAIDs may offer possibilities for treatment of various conditions in chickens.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents, Non-Steroidal / blood
  • Anti-Inflammatory Agents, Non-Steroidal / pharmacokinetics*
  • Area Under Curve
  • Chickens
  • Chromatography, High Pressure Liquid
  • Clonixin / analogs & derivatives*
  • Clonixin / blood
  • Clonixin / pharmacokinetics*
  • Half-Life
  • Injections, Intravenous
  • Meloxicam
  • Sodium Salicylate / blood
  • Sodium Salicylate / pharmacokinetics*
  • Species Specificity
  • Thiazines / blood
  • Thiazines / pharmacokinetics*
  • Thiazoles / blood
  • Thiazoles / pharmacokinetics*
  • Tissue Distribution

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Thiazines
  • Thiazoles
  • flunixin
  • Clonixin
  • Meloxicam
  • Sodium Salicylate