Used to treat gastrointestinal motility disorders, particularly gastroesophageal reflux disease (GERD) and delayed gastric emptying. It works by increasing the movement of the esophagus, stomach, and intestines, helping food move more easily through the digestive tract. Was commonly prescribed for conditions like chronic constipation and irritable bowel syndrome when related to slow motility. Due to risk of serious heart rhythm abnormalities, its use has been restricted or discontinued in many countries, and it is now typically reserved for limited, closely monitored cases under special access programs.