Used primarily in scientific research for its potent and selective antagonism of the 5-HT3 receptor, making it valuable in studies related to serotonin-mediated physiological processes. It is employed to investigate the role of 5-HT3 receptors in nausea and vomiting, particularly in models related to chemotherapy-induced emesis. Due to its high specificity, it serves as a pharmacological tool to block 5-HT3 receptors in vitro and in vivo, aiding in the development and validation of antiemetic drugs. Its application is largely confined to laboratory settings and is not used clinically.