Impact of Tamsulosin on Voiding Patterns Following Early Catheter Removal After Robot-assisted Laparoscopic Radical Prostatectomy

Inclusion Criteria: * Patients must have localized or locally advanced prostate cancer * Patients must receive robot assisted laparoscopic radical prostatectomy * Patients must be able to provide written informed consent Exclusion Criteria: * Patients must not have a history of treatment with alpha blockers within 4 weeks * Patients must not have previously undergone transurethral resection, laser therapy, or other surgery of the prostate * Patients must not have previously been diagnosed with neurogenic bladder * Patients must not have hypersensitivity to trial drug or other alpha-blockers * Patients must not have the participation of other clinical trial within the past 3 months