2309
Although the literature on the use of risperidone in elderly patients with dementia consists largely of uncontrolled trials, case reports, and chart reviews, it appears that this agent is effective for managing agitation in this population and does so with a low frequency of extrapyramidal symptoms (EPS).
 ( potential therapeutic event: is ,  elderly patients with dementia: Subject, elderly: Subject.Age, use of risperidone: Treatment, risperidone: Treatment.Drug, dementia: Treatment.Disorder) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( potential therapeutic event: is ,  elderly patients with dementia: Subject, elderly: Subject.Age, use of risperidone: Treatment, risperidone: Treatment.Drug, dementia: Treatment.Disorder) 