My mother has Alzheimers, she has lived with us for two years. She is on two medications Donepezil HCL and Nuedexta which she has been taking for one year. In the past three weeks she has become angry mostly focused at my wife. She has always disliked my wife, we think is is due to thinking that I am her husband or brother. She is never wrong, lies all the time, and blames someone or them or they if she can't find something. She is 90 years old and in very good health no medication other than what is listed above. During the past two years our life has come to a halt and is affecting our marriage. Neither one of us want to put her in a nursing home, but we cannot continue in this manner.