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Metoclopramide's primary function is to stimulate motility in the gastrointestinal tract, making it particularly useful in treating conditions where increased movement through the digestive system is beneficial. This includes instances like gastroparesis, where the stomach does not empty properly, and may also help facilitate the passage of food, reducing symptoms like bloating and discomfort.

While metoclopramide does have secondary effects, such as preventing nausea and vomiting, its primary role is to enhance the movement of the gastrointestinal tract. It works by blocking dopamine receptors, leading to increased gastric emptying and improved peristalsis. This ability to enhance motility is crucial in various medical contexts and can help patients who experience delayed gastric emptying due to conditions like diabetes or following surgical procedures. Understanding this primary function helps in recognizing where and how metoclopramide is typically utilized in medical practice.