Risperdal is not for use in psychotic conditions related to dementia.
Risperidone may cause heart failure, sudden death, or pneumonia in older adults with
dementia-related conditions." End Quote. This came from a trusted and often used medication site.
Another trusted site has this to say, Begin Quote: "There may be a slightly increased risk of serious, possibly fatal side effects (such as stroke, heart failure) when this medication is used in elderly patients with dementia.