N-Acetyl-DL-leucine is primarily used in the field of medical research and treatment, particularly for neurological disorders. It has shown promise in improving symptoms associated with ataxia, a condition that affects coordination, balance, and speech. The compound is believed to enhance cerebellar function, which plays a critical role in motor control. Additionally, it is being explored for its potential neuroprotective effects, which could be beneficial in managing neurodegenerative diseases. Its application extends to clinical trials where it is administered to evaluate its efficacy and safety in patients with movement disorders.