Cisapride hydrate is primarily used as a gastrointestinal motility stimulant. It is effective in treating conditions like gastroparesis, where the stomach empties too slowly, and chronic constipation. The compound enhances the release of acetylcholine in the enteric nervous system, thereby increasing the movement of the digestive tract. It is also prescribed for reflux esophagitis, helping to reduce symptoms such as heartburn and regurgitation by improving the clearance of acid from the esophagus. Additionally, it has been used in veterinary medicine to manage similar gastrointestinal motility disorders in animals. However, its use is often limited due to potential cardiac side effects, and it is typically prescribed under strict medical supervision.