Metoclopramide Hydrochloride Injection, often called “Gastrofluan” by clinicians, is a commonly used antiemetic drug in clinical practice and is a symptomatic treatment drug, generally used in the following cases: 1, Biliary pancreatic, uremia and other disorders caused by the symptomatic treatment of nausea, vomiting; 3. barium gastrointestinal imaging after taking, can reduce nausea, vomiting reaction, to promote the passage of barium meal.