WAY-605849 is primarily used in scientific research as a pharmacological tool to study serotonin receptor subtypes, particularly 5-HT2C receptors. It acts as a selective antagonist or modulator, allowing researchers to investigate the role of these receptors in various physiological and behavioral processes. Its application is focused in neuroscience and neuropharmacology, where it helps elucidate pathways involved in mood regulation, appetite control, and cognitive function. Due to its specificity, it supports the development and validation of new therapeutic agents targeting central nervous system disorders such as depression, anxiety, and obesity. It is not used clinically and remains restricted to laboratory and experimental settings.