Used as a cholecystokinin (CCK) receptor antagonist, particularly in research settings to study gastrointestinal motility and secretion. It has been investigated for its potential to modulate pain perception, especially in visceral pain models, due to its ability to cross the blood-brain barrier. Also explored for possible effects on anxiety and cognitive function through central CCK receptor blockade. Historically studied in the management of peptic ulcer disease and gastroesophageal reflux, though not widely adopted in clinical practice. Commonly used in laboratory experiments to understand the role of CCK in physiological and pathological processes.