Metoclopramide injection is a kind of antiemetic drug, the main effect is antiemetic, can be used for postoperative radiotherapy, acute gastroenteritis, diagnostic duodenal intubation before. 1. Metoclopramide can be used in chemotherapy, radiotherapy, surgery, craniocerebral injury, post-traumatic brain injury, sea and air operations, and drug-induced vomiting, with a certain antiemetic effect. 2. Metoclopramide can be used in the symptomatic treatment of acute gastroenteritis, intestinal pancreatic diseases, uremia and other diseases caused by malignant vomiting symptoms, reduce the discomfort of vomiting. 3. Metoclopramide can be used before diagnostic duodenal intubation, which is conducive to smooth intubation and reduce nausea, vomiting adverse reactions. Note that the use of drugs should follow the doctor’s instructions, not self-injection, so as not to cause unnecessary damage.