YM 022 is a potent and selective antagonist of the cholecystokinin-1 (CCK-1) receptor. It is primarily used in scientific research to study the role of CCK receptors in physiological processes such as appetite regulation, anxiety, and gastrointestinal motility. Due to its high affinity and selectivity for CCK-1 receptors, YM 022 helps researchers investigate the signaling pathways involved in satiety and food intake, making it a valuable tool in studies related to obesity and eating disorders. It has also been used in preclinical models to explore the involvement of CCK receptors in panic and anxiety responses. Its application remains confined to laboratory and experimental settings, with no current use in clinical therapy.