Neuroleptic
A term that refers to the effects of antipsychotic drugs on a patient, especially on his or her cognition and behavior.
Neuroleptic drugs may produce a state of apathy, lack of initiative and limited range of emotion.
In psychotic patients, neuroleptic drugs cause a reduction in confusion and agitation and tend to normalize psychomotor activity.
The term comes from the Greek 'lepsis' meaning a taking hold.