Diffusion of oral ofloxacin (HOE 280) into human prostatic tissue: Assessment by an improved high-performance liquid chromatographic method

Abstract

11 patients with a prostatic adenoma received a single oral 200 mg dose of ofloxacin 2 h before transurethral resection of the prostate. During the operation, blood samples and prostatic tissue cuttings were collected simultaneously. Ofloxacin was assayed by an original HPLC method with UV detection. The mean concentration of the unchanged drug was 5.10 mg/kg wet tissue and 1.81 mg/l in prostatic tissue and plasma, respectively. The 3.17 prostate/plasma ratio reflected a good penetration of ofloxacin into the prostatic tissue.

Ofloxacin Clinical Pharmacokinetics

“…The quinolones are effective agents against bacterial prostatitis, a finding consistent with the significant penetration into prostatic tissue and secretions. The ratio of ofloxacin concentrations in prostatic tissue to those in plasma was 3.17 2h after a single 200mg oral dose (Claes et al 1986). Prostatic and vesical fluid concentrations 2h after the final dose of 400mg/day orally for 3.5 days were 2.44 and 2.5 mg/L, respectively.…”