WAY-323756 is primarily used in scientific research for studying inflammatory pain and neurogenic inflammation. It acts as a potent and selective antagonist of the NK3 receptor (neurokinin 3 receptor), which plays a role in the central nervous system's regulation of pain, mood, and certain neurodegenerative conditions. Due to its high selectivity and ability to cross the blood-brain barrier, it is valuable in preclinical studies investigating the role of tachykinin signaling pathways. Researchers use WAY-323756 to explore potential therapeutic strategies for conditions such as chronic pain, depression, and schizophrenia, where NK3 receptor overactivity may contribute to disease pathology. Its application remains confined to laboratory and experimental settings, with no current clinical use in humans.