<prompt> Drugs used for treating schizophrenia are chiefly: March 2010AntimaniacAntidepressantAntihistaminicsAntipsychotic  <response>: Ans. D: Antipsychotic Antipsychotics have been a mainstay of therapy for schizophrenia since the introduction of chlorpromazine in the mid-1950s, which revolutionized treatment. Atypicalsecond generation antipsychotic drugs, such as riseperidone, olanzapine, quetiapine. Aripiprazole, and ziprasidone, are more commonly used than the older typicalfirst generation antipsychotics such as trifluoperazine and haloperidol, in acute stages. Atypical antipsychotics are also useful when negative symptoms are prominent, e.g. in chronic schizophrenia. 