Abstract
The distribution of fleroxacin (Ro 23-6240) in canine prostatic tissue and fluids was investigated under steady-state conditions during intravenous infusion. Mean ratios of fleroxacin concentration in tissue and fluids over concentration in plasma were 1.57 +/- 0.25 for prostatic tissue, 1.12 +/- 0.28 for prostatic secretion, and 0.93 +/- 0.14 for prostatic interstitial fluid. These levels and concentrations in urine were several times higher than the MIC for most pathogens that cause chronic bacterial prostatitis and urinary tract infection. The MICs for several isolates of Escherichia coli were only slightly affected by canine prostatic secretion, human prostatic tissue extract, and human urine. Clinical trials with fleroxacin appear justified for chronic bacterial prostatitis and urinary tract infection.
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