 The ergoline antimigraine agent ergotamine also acts on this receptor.Serenics such as batoprazine, eltoprazine, and fluprazine are agonists of the 5-HT1B receptor and other serotonin receptors, and have been found to produce antiaggressive effects in animals, but have not been marketed.Eltoprazine is under development for the treatment of aggression and for other indications.