Medications to Manage Dementia Symptoms

My mother has dementia. She’s in an Alzheimer’s facility and in a constant state of anxiety and depression. The number of medications she is on is incredible: Cymbalta, Depakote, Haloperidol, Aricept, Seroquel, Buspar, Trazodone, and Risperdal. They do not control her behavior. Is she at risk for dangerous drug interactions? How can I make sure her therapy is appropriately monitored?