Use of a novel non-steroidal anti-inflammatory drug, nimesulide, in the treatment of abacterial prostatovesiculitis

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Abstract
Nimesulide, a novel non-steroidal anti-inflammatory drug, was used in cases of abacterial prostato-vesiculitis. Thirty patients with a mean age of 33.7 years (range 18-58) were studied. Nimesulide was administered orally 100 mg b.i.d. for three cycles of 10 d each. Dysuric symptoms, semen analysis, and transrectal ultrasound were examined during the study. The concentration-time curves of nimesulide (NIM) and its metabolite, hydroxynimesulide (OH-NIM) in seminal fluid were also evaluated after single oral administration (100 mg) using an HPLC technique. Following administration of the drug, the Cmax was reached in seminal fluid at the second hour for NIM (with a mean value +/- SD of 0.58 +/- 0.13 micrograms ml-1) and at the fourth hour for OH-NIM (2.98 +/- 0.38 micrograms ml-1). Maximal seminal fluid concentrations compared to blood plasma levels were observed at the fourth hour for both substances (31.73 +/- 2.34% for NIM; 31.87 +/- 8.66% for OH-NIM. Dysuric symptoms were relieved in 20 (66%) patients. A clear amelioration of inflammatory signs were observed at transrectal ultrasound evaluation in 16 (54%) patients. No statistically significant changes of sperm count and motility in the whole sample were observed, while a significant reduction in the number of abnormal forms occurred. From these results, nimesulide appears to be an effective anti-inflammatory drug with a good diffusion into the genital apparatus and low side-effects.