Fantofarone is primarily used in research settings to study calcium channel activity. It acts as a calcium channel blocker, making it valuable for investigating the role of calcium channels in various physiological processes, particularly in cardiovascular and neurological studies. Researchers utilize it to understand cellular mechanisms related to muscle contraction, neurotransmitter release, and signal transduction. Its application helps in exploring potential therapeutic targets for conditions like hypertension, arrhythmias, and neurodegenerative diseases. Additionally, Fantofarone is employed in pharmacological experiments to assess the efficacy and safety of new calcium channel-modulating drugs.