The generic name of morpholine is domperidone, and if hiccups are caused by indigestion, oral domperidone is effective. The causes of hiccups usually include nervousness, indigestion, chronic gastritis, etc. According to different causes, there are different ways to relieve hiccups. 1. Nervousness: Nervousness leads to diaphragmatic spasm, which causes hiccups. Usually, it is necessary to divert attention, relieve nervousness, and drink some warm water to help relieve diaphragmatic spasm, so as to alleviate the symptoms of hiccups. The use of domperidone in this case usually does not have a therapeutic effect. 2. Indigestion: indigestion leads to insufficient gastric power, so that the food in the stomach can not be digested for a long time, resulting in increased gas production, causing hiccups, at this time to take domperidone to promote gastric power can be effective in relieving hiccups. 3. Chronic gastritis: chronic gastritis leads to damage to the gastric mucosa, when the gastric mucosa is stimulated, the phenomenon of hiccups may occur, you can take omeprazole, magnesium aluminum carbonate, domperidone, so as to relieve the hiccups. Gastroesophageal reflux disease, esophageal hiatal hernia, peptic ulcer and other diseases may also appear after meals hiccups. If hiccups persist without relief or for a long period of time, it is recommended to go to the hospital as soon as possible and take appropriate measures under the guidance of the doctor.