... 50 mg. at night for about 3 yrs. Initially she started taking it because she was experiencing delusions and vivid dreams. We're not sure what was causing these delusions at the time. She had been on Aricept for a short time. We'd like to take her off of Seroquel completely. It's expensive and we're not sure it's needed. How do we know? Is this advised? What information do you have using Seroquel for Alzheimer's related symptoms?