Morpholine, known generically as Domperidone, has the effect of stimulating peristalsis and promoting gastric emptying, and is used as a primary treatment for indigestion, nausea and vomiting, and abdominal distension. Side effects such as reflux, insomnia and lethargy can occur after taking it. Domperidone is a gastrointestinal power drug, the main ingredient is domperidone. It has the effect of promoting peristalsis and gastric emptying. It is clinically used to treat indigestion, nausea and vomiting, abdominal distension and belching. Side effects such as reflux, headache, insomnia and lethargy may occur in some patients after taking domperidone, and adverse reactions such as loss of sense of direction and drowsiness may also occur with overdose of the drug. It is prohibited for people with hepatic impairment, pregnant and lactating women. Domperidone should be taken under the guidance of a doctor, and should not be used blindly on its own to avoid adverse reactions.