3-Fluoroethamphetamine hydrochloride is primarily used in research settings to study its effects on the central nervous system. It is often investigated for its potential psychoactive properties and its interaction with neurotransmitter systems, particularly dopamine and serotonin. Researchers explore its behavioral and neurological impacts to better understand stimulant-related mechanisms and potential therapeutic applications. However, due to its psychoactive nature, it is not approved for medical or recreational use and is strictly regulated in many jurisdictions. Its application remains limited to controlled scientific studies aimed at advancing knowledge in neuroscience and pharmacology.