• Xiu-Juan Yan, Ping Xu, Hong-Yi Qiu, Bo Wang, Qing-Qing Luo, and Sheng-Liang Chen.
• Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China.
• Medicine (Baltimore). 2021 Mar 12; 100 (10): e24947e24947.

BackgroundBowel preparation is essential to the success of colonoscopy. However, many patients cannot finish the preparation due to nausea and vomiting when taking polyethylene glycol (PEG). Dopamine-2 receptor antagonists, such as domperidone and sulpiride, are classical antiemetic drugs. This study aimed to explore the effect of domperidone and sulpiride on reducing the discomforts associated with PEG.MethodsPatients scheduled for colonoscopy were enrolled and randomly allocated into 3 groups. Patients in the domperidone group (Dom group) or sulpiride group (Sul group) took 2 doses of domperidone or sulpiride before PEG. Patients in the control group (Con group) followed the regular routine of PEG. Discomforts during bowel preparation and the quality of bowel preparation were assessed.ResultsA total of 306 patients were enrolled. The participants in the Dom group and Sul group completed PEG better and had fewer abdominal discomforts than those in the Con group. The severity of nausea and abdominal fullness was lower in the Dom group and Sul group. The quality of bowel preparation was better in the Dom group and Sul group than Con group.ConclusionsDomperidone and sulpiride could reduce the PEG-related discomfort and improve the quality of bowel preparation. This method may be a promising way to improve the satisfaction of bowel preparation for both patients and endoscopists.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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