The Use of Haloperidol and Chlorpromazine to Treat Schizophrenia

The use of haloperidol and chlorpromazine to treat schizophrenia

A) has been largely ineffective in spite of early enthusiasm for the drugs.
B) may produce motor side effects resembling those observed in Parkinson's disease.
C) is best for relatively mild forms of the disorder.
D) is effective for treating negative but not positive symptoms of the disorder.