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Low dose flunixin meglumine: effects on eicosanoid production and clinical signs induced by experimental endotoxaemia in horses.

Authors
  • Semrad, S D
  • Hardee, G E
  • Hardee, M M
  • Moore, J N
Type
Published Article
Journal
Equine veterinary journal
Publication Date
May 01, 1987
Volume
19
Issue
3
Pages
201–206
Identifiers
PMID: 3608957
Source
Medline
License
Unknown

Abstract

The efficacy of low doses of flunixin meglumine in reducing eicosanoid generation and clinical signs in response to experimentally induced endotoxaemia was investigated. Thromboxane B2 and 6-keto-prostaglandin F1 alpha were measured in serum and plasma by radioimmunoassay. Plasma flunixin concentrations were determined by high performance liquid chromatography and pharmacokinetic parameters derived non-compartmentally. In horses administered flunixin meglumine before endotoxin challenge, a significant suppression in plasma thromboxane B2 and 6-keto-prostaglandin F1 alpha generation was observed. Elevations in blood lactate were significantly suppressed in horses pretreated with 0.25 mg/kg bodyweight flunixin meglumine. Reduction of the clinical signs of endotoxaemia by flunixin meglumine was dose dependent. Low doses of flunixin inhibited eicosanoid production without masking all of the physical manifestations of endotoxaemia necessary for accurate clinical evaluation of the horse's status.

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