[Passage of cefotiam into prostatic tissue].

20, 30 and 90 minutes after a single intravenous injection of 2 g of cefotiam prostatic tissue and serum samples were taken from 12 patients who underwent transabdominal prostatectomy for prostatic adenoma. Cefotiam was assayed by HPLC. Mean serum and prostatic concentrations were respectively 157 +/- 39 mg/ml and 42 +/- 23 mg/g at 20 mn, 77 +/- 52 mg/ml and 54 +/- 2 mg/g at 30 mn, 36 +/- 21 mg/ml and 16 +/- 18 mg/g at 90 mn. Elimination half-life of cefotiam was 1 h 39 mn for serum and 1 h 10 mn for prostatic tissue. These findings confirm the satisfactory diffusion of cefotiam within prostatic tissue, although saturation occurs after 30 mn. Treatment of prostatitis by cefotiam can be expected to give excellent results.