<prompt> Drug which can act as antagonis of Haloperidole ?RopiniroleClozapineImipraminePimozide  <response>: Ans. isai.e., Ropinirole Haloperidol is an antipsychotic, acts by D2 receptor blockage.Ropinirole is an antiparkinsonian drug, acts by D2 receptor agonist. 