Primarily used in pharmacological research to study the metabolism and polymorphism of cytochrome P450 enzymes, particularly CYP2C19. It serves as a probe drug to identify individuals with genetic variations affecting drug metabolism, aiding in personalized medicine. Additionally, it has been utilized in clinical studies to investigate the impact of enzyme activity on the efficacy and safety of various therapeutic agents. Its role in understanding drug-drug interactions and metabolic pathways is significant in optimizing treatment regimens.