Dear Barb Smith--I'm really glad that Aricept has been so helpful to Ken. As you told me, he has an atypical dementia. In Peter's case, he was on Aricept a month (5mg) and we saw no improvement in memory,cognition, etc. but did feel that after a couple of weeks the nausea,insomnia,and espec- ially the loss of appetite, were side effects--they have gone or diminished now that he is off Aricept. A real disappointment! He would not eat, and was weighed at the doc's this week at 125 1/2 lbs--normal for him has been about 140-145 lbs! (He's 5'11" tall) I mention this only as a "red flag" in case others on thelist note a loss of appetite with Aricept--the 3 things we noted were all listed as possible side effects in the insert.Thank goodness Peter is now eating again, and getting back some of the strength he lost. Camilla Flintermann, CG for Peter, 79/8, Oxford,Ohio [log in to unmask] * * * * * * * * * * * * * * "Ask me about the CARE list for PD caregivers!" * * * * * * * * * * * * * *