my mother has been suffering with depression all her life, is on 40 mg of cymbalta. my dad just passed away two months ago. Her immediate memory is awful and she is extremely depressed. the psychiatrist suggested changing cymbalta to 30 mg and 25 mg. of seriquil. Reading about seriquil it says not to use in psychitoc conditions related to dementia. she does not suffer from psychotic dementia. any suggestions??? by the way she is in a great nursing home but they will not do anything without my approval.