Morpholine generic name domperidone, oral or rectal administration of rapid absorption, about 15 to 30 minutes and 60 minutes or so blood concentration can reach the peak, play the best drug effect, so the effect is still relatively fast. Domperidone is a benzimidazole derivative, a strong dopamine receptor antagonist, can directly antagonize the gastrointestinal tract dopamine Dâ‚‚ receptor and play a role in promoting gastrointestinal motility. It can be used to treat symptoms of dyspepsia such as epigastric pain, bloating, belching, nausea, vomiting, acid reflux, loss of appetite, and burning sensation in the stomach caused by delayed gastric emptying, gastroesophageal reflux disease, esophagitis, and so on. Domperidone can also improve the symptoms of nausea and vomiting caused by functional, organic, infectious, radiotherapy or chemotherapy; in addition, it can coordinate the contraction of the pylorus, inhibit nausea and vomiting, and effectively prevent bile reflux. Domperidone is suitable to be taken 15-30 minutes before meals because the reduction of gastric acid after meals will affect the absorption of domperidone, and the drug should not be used for more than 1 week in general. Liver and kidney insufficiency, children, pregnant and lactating women should be cautious; mechanical intestinal obstruction, gastrointestinal bleeding, breast cancer, pheochromocytoma patients are prohibited. Domperidone is recommended to be taken under the guidance of a doctor and should not be used without authorization.