Article Text

Effect of feeding on the fate of orally administered phenylbutazone, trimethoprim and sulphadiazine in the horse
  1. JA Bogan,
  2. A Galbraith,
  3. P Baxter,
  4. NM Ali and
  5. SE Marriner


Phenylbutazone, sulphadiazine and trimethoprim were administered to three horses on two occasions, recently fed and unfed, and the effect of feeding on the pharmacokinetics of the three drugs assessed. The mean peak concentrations of phenylbutazone and trimethoprim were reduced by feeding by 34 and 75 per cent, respectively. The pharmacokinetics of sulphadiazine were not significantly affected.

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