PF-04418948 is primarily utilized in the field of medical research, particularly in the study of inflammatory and respiratory conditions. It functions as a potent and selective antagonist of the EP2 receptor, which is a subtype of prostaglandin E2 receptors. This makes it a valuable tool for investigating the role of EP2 signaling in various physiological and pathological processes. Researchers employ PF-04418948 to explore its potential therapeutic effects in diseases such as asthma, chronic obstructive pulmonary disease (COPD), and other inflammation-related disorders. Its ability to modulate inflammatory responses offers insights into developing targeted treatments for these conditions. Additionally, it is used in preclinical studies to better understand the mechanisms underlying EP2 receptor-mediated pathways and their impact on disease progression.