Correct Answer - A
Some tranquillizers are also called antipsychotic drugs (major tranquillizers ) as they have good effect in all types of psychosis (patient having severe psychiatric illness, schizophrenic patients). They reduce aggressivenesss. Thought and behaviour are gradually normalised and anixety is relived. Examples of atipsychotic drugs are Phenothiazines, Butyrophenones, Pimozide, Reserpine, etc.