Used primarily in research settings to study the effects of serotonin on behavior and mood, as it inhibits the synthesis of this neurotransmitter. It is also employed in experiments to understand the role of serotonin in various physiological processes, including sleep, appetite, and pain perception. Additionally, it serves as a tool in pharmacological studies to explore potential treatments for conditions like depression and anxiety by manipulating serotonin levels. Its application extends to neuroscience, where it helps in dissecting the complex pathways of neurotransmitter regulation.