Metoclopramide is a medication primarily used to treat nausea and vomiting, especially in patients undergoing chemotherapy or surgery. It works by blocking certain signals in the brain that trigger these symptoms, helping to promote gastric emptying and improve digestion. Additionally, metoclopramide can be prescribed for conditions like gastroparesis, where the stomach takes too long to empty its contents. It is available in various forms, including tablets and injections, and should be used under medical supervision due to potential side effects, such as drowsiness or movement disorders.