• Ashraf Aleyasin, Somayeh Hanafi, Elham Saffarieh, Hassan Torkamandi, Sara Allahyari, Fariborz Sadeghi, and Mohammadreza Javadi.
• Gynecology and Obstetrics Department, Dr. Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
• Iran J Pharm Res. 2012 Jan 1;11(4):1059-64.

AbstractBackground Granisetron is a first-generation 5-HT3-receptor antagonist that has shown efficacy in preventing postoperative nausea and vomiting (PONV). In this randomized double-blind parallel-group clinical trial, we assessed the efficacy of generic granisetron versus Kytril®, in the prevention of PONV in patients undergoing general anesthesia for gynaecological surgeries. Method One hundred and twenty patients who were supposed to undergo major gynaecological surgeries (myomectomy and hysterectomy) in Dr. Shariati Teaching Hospital, Tehran, Iran were randomly assigned to either single dose generic granisetron (40 mcg/kg), or Kytril® (40 mcg/kg) at the end of the surgery. Two episodes of emetic symptoms (nausea and vomiting) were recorded by a gynaecologist who had no knowledge of which treatment each patient had received. This gynaecologist observed the patients at three different intervals: 6, 12 and 18 h post surgery. At the end of the observation period each patient evaluated the satisfaction with the study drug, and the gynaecologist evaluated sedation of the patients. Results In the generic granisetron group 47 and 13 patients, and in the Kytril® group 45 and 15 patients underwent hysterectomy and myomectomy respectively. No difference was observed between two treatment groups regarding postoperative nausea and vomiting control during 18 hours after the drugs administration. Also there were no differences in the satisfaction with the study drug between the generic granisetron and Kytril®. No difference in sedation scores was observed between two groups. Conclusion Generic granisetron exerts efficacy against PONV after gynaecological surgeries which is non-inferior to that of Kytril®.

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