Used primarily as an active metabolite in the treatment of gastrointestinal motility disorders. Enhances gastric emptying and intestinal transit by stimulating serotonin 5-HT4 receptors, leading to the release of acetylcholine in the enteric nervous system. Applied in managing symptoms of gastroesophageal reflux disease (GERD), functional dyspepsia, and chronic constipation. Its activity supports improved coordination of upper GI tract motility without significant central nervous system effects.