Bromopride
Bromopride ( INN ) is a dopamine antagonist with prokinetic properties widely used as an antiemetic , closely related to metoclopramide . 
<triplet> Bromopride <subj> dopamine antagonist <obj> subject has role <subj> antiemetic <obj> subject has role <triplet> metoclopramide <subj> dopamine antagonist <obj> subject has role <subj> antiemetic <obj> subject has role