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Cornell Vet. 1991 Apr;81(2):137-43.

Serum and synovial fluid concentrations of ampicillin trihydrate in calves with suppurative arthritis.

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  • 1Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610-0136.

Abstract

Eight calves with suppurative arthritis were each given a single intramuscular injection of ampicillin trihydrate at a dose of 10 mg/kg. Ampicillin concentrations were measured serially in serum and in suppurative and normal synovial fluid over a 24-hour period. The mean peak serum concentration was 2.5 +/- 0.54 micrograms/ml 2 hours after injection. The highest concentration in normal synovial fluid was 3.5 +/- 0.40 micrograms/ml at 4 hours and the highest concentration in suppurative synovial fluid was 2.7 +/- 0.58 micrograms/ml at 2 hours. Overall mean ampicillin concentration in normal synovial fluid for the first 8 h (2.9 +/- 0.32 micrograms/ml) was significantly different from that in suppurative synovial fluid (2.1 +/- 0.33 micrograms/ml) and serum (1.9 +/- 0.30 micrograms/ml; p less than 0.05).

PMID:
2029838
[PubMed - indexed for MEDLINE]
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