Molindone hydrochloride is the hydrochloride salt form of molindone, a conventional antipsychotic used in the therapy of schizophrenia. It is a dopamine D2/D5 receptor antagonist. ;Molindone hydrochloride is the hydrochloride salt form of molindone, a conventional antipsychotic used in the therapy of schizophrenia. It is a dopamine D2/D5 receptor antagonist.