An Open-label, Prospective Interventional Study of the Tolerability and Efficacy of Oral Harnalidge® OCAS® (Tamsulosin) 0.4 mg in Patients Who Are Unsatisfied With the Treatment of Tamsulosin 0.2 mg

This is an open-label, single-arm, prospective interventional study to assess the tolerability and efficacy of Harnalidge® OCAS® 0.4 mg in Taiwan patients who are unsatisfied with tamsulosin 0.2 mg for the treatment of lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH).