Siltenzepine is primarily used in research settings to study its effects on the central nervous system, particularly in relation to its interaction with muscarinic acetylcholine receptors. It has been investigated for its potential therapeutic applications in neurological and psychiatric disorders, such as schizophrenia, due to its ability to modulate receptor activity. Additionally, its pharmacological properties make it a valuable tool for understanding the role of specific receptors in cognitive and behavioral processes. Research continues to explore its efficacy and safety for potential clinical use.