I don't know what to do. Because of "psychotic symptoms" my Dad was switched from Aricept to Exelon about a month ago, maybe a bit longer than that. Also, he was prescribed Quitiapine. However, over the last few days he seems to have deteriorated a lot. A month ago, his memory wasn't all that good, but aside from being a bit confused when waking from daytime naps, was pretty good. However, over the last few days, he has become very confused. The last few nights he could not remember where the toilet or bedroom were, and in the bedroom wanted to know what bed to use and what side to lie on. He forgot how the television worked. He has to be told to do things, and in what order - for example, take these tablets, now take a drink from that cup of water. Etc. This morning, he wanted to know what road we were in, and what house we were in. When told he was at home, he said "oh, I thought we'd gone out for a walk". He asked "where is the thing I used to put my breakfast in"? pointing at the microwave "it used to be there". He seems to wander in a daze with a "blank" expression. I don't know how things go, but to me this doesn't seem to be a typical progression, and it doesn't fit with what we were told would happen. He has also complained of pain when passing stools (sorry to be so graphic!), and that they are very hard and dark. He says he's constipated. However, we don't know how much we can rely on what he is saying. This seems contrary to the expected side-effects of Exelon. How I wish we had never changed from Aricept, he did so well on that! I don't know what to do. I have rung the CPN, but of course, she is not there on weekends.