Pharmacology General 8617da3e Drug which can act as antagonis of Haloperidole ? A Ropinirole B Clozapine C Imipramine D Pimozide High-Yield Explanation Ans. is'a'i.e., Ropinirole Haloperidol is an antipsychotic, acts by > D2 receptor blockage.Ropinirole is an antiparkinsonian drug, acts by > D2 receptor agonist.