After being informed about the clinical study and all the risks, all patients will be given a written informed consent. They will be randomised in three groups: A (tadalafil),B (tamsulosin) and C (placebo) and the drug or placebo will be administrated seven days before and seven days after transperineal prostate biopsy. Thirty minutes before the biopsy, all patients will receive a prophylactic antibiotic (ceftriaxone 2g intravenously) and an analgetic ( naklofen 75mg intramuscular injection). Before the biopsy patients will do an uroflowmetry to determine the Qmax and ultrasound(US) of the urinary tract to determine residual urine. After the biopsy is performed the patient fills out the international prostate symptom score (IPSS/QoL), visual analog scale (VAS) for pain, International Index of Erectile Function (IIEF-5) and 36-Item Short Form Survey (SF-36) questionnaires. Seven days after the biopsy the patient discontinues with the therapy and makes a visit for routine control of uroflowmetry, US of the urinary tract and he previously mentioned questionnaires are filled out. After 30 days of the biopsy the patient makes a visit for regular control of the pathohistological findings, uroflowmetry and ultrasound of the urinary tract, along with filling out the questionnaires again.
The purpose of this study is to evaluate the therapeutic efficacy of tamsulosin and tadalafil compared to placebo in the treatment and prevention of urinary disorders after transperineal prostate biopsy