Used primarily in scientific research as a selective antagonist for serotonin receptors, particularly the 5-HT1D subtype (with lower affinity for 5-HT1B). It helps in studying the role of these receptors in neurotransmission, mood regulation, and migraine mechanisms. Due to its specificity, it is valuable in pharmacological experiments aiming to differentiate 5-HT1B and 5-HT1D receptor subtype functions. Not intended for clinical or therapeutic use in humans.