Used primarily in scientific research to study the role of serotonin receptors, particularly the 5-HT1B and 5-HT1D subtypes, in neurological pathways. It acts as a selective antagonist, helping researchers differentiate receptor functions in models of migraine, anxiety, and depression. Commonly applied in in vitro and in vivo pharmacological assays to evaluate serotonergic drug effects and receptor binding profiles. Not intended for clinical or therapeutic use in humans.