Efficacy of Goreisan in transurethral resection of prostate: A prospective randomized study

INTERVENTION: Intervention type:DRUG. Intervention1:Goreisan intake, Dose form:FINE GRANULES, Route of administration:ORAL, intended dose regimen:two groups:intake and no intake. Control intervention1:no intake of Goreisan, Dose form:GRANULES, Route of administration:NOT APPLICABLE . CONDITION: Patients who undergo transurethral resection of prostate because of benign prostatic hypertrophy PRIMARY OUTCOME: Change of serum sodium and occurrence of TUR syndrome. Timepoint:perioperative period . SECONDARY OUTCOME: 1) perioperative mortality ; 2) neurological and circulatory abnormality ; 3) serum creatinine levels ; 4) lactate levels . Timepoint: perioerative period . INCLUSION CRITERIA: 1) Benign prostatic hypertrophy 2) male: 20‐89 year‐old 3) patients showed consent of this study