3-fluoro-4-phenylpiperidine is primarily utilized in the field of medicinal chemistry and pharmaceutical research. It serves as a key intermediate or building block in the synthesis of various bioactive compounds, particularly those targeting the central nervous system. Its structure is often incorporated into the development of potential drugs for neurological disorders, such as depression, anxiety, and pain management, due to its ability to interact with specific receptors in the brain. Additionally, it is explored for its role in creating novel compounds with potential antipsychotic or analgesic properties. Researchers also study its derivatives for their pharmacokinetic and pharmacodynamic profiles to optimize drug efficacy and safety.