The objective of this study was to examine the use of granisetron in actual clinical practice and to compare effect of dose of 1 mg granisetron after total cystectomy plus ileal conduit with group of patients which received metoclopramide. Granisetron established total contol of PONV in 93,33% patients. Granisetron is 40% more effective in PONV control than metoclopramide. Only minimal nausea epizodes were observed in early postoperative period in patients who had received low dose of granisetron (1 mg i.v.).