PK-10571 is primarily utilized in research settings, particularly in the study of central nervous system disorders. It acts as a selective serotonin receptor antagonist, making it valuable for investigating the role of serotonin receptors in various neurological and psychiatric conditions. Researchers employ it to understand the mechanisms underlying anxiety, depression, and other mood disorders. Additionally, it is used in preclinical studies to evaluate potential therapeutic agents targeting serotonin pathways. Its specificity allows for precise modulation of serotonin receptor activity, aiding in the development of novel treatments for mental health disorders.