NIBR189 is primarily utilized in the field of medical research, particularly in the study and treatment of neurological disorders. It functions as a selective inhibitor of the enzyme phosphodiesterase 10A (PDE10A), which plays a significant role in regulating brain signaling pathways. By inhibiting this enzyme, NIBR189 helps modulate neurotransmitter activity, making it a potential therapeutic agent for conditions such as schizophrenia, Huntington's disease, and other cognitive or motor function impairments. Its application in preclinical studies has shown promise in improving behavioral and cognitive deficits, paving the way for further development in neuropharmacology.