I plan to ask her doc if we can do this. She's already on the generic for Aricept with no problems for a few years now. I'll have to say I've noted more recent anger/aggression and am suspecting the Namenda XR after reading some comments on this forum. Right now am planning on giving her the Namenda XR every other day instead of every day to see if this might help a bit. The anger is a new thing for us. She checked out fine the other day (no UTI). Otherwise, she seems to be doing alright. Of course, the price difference down to the generic would be nice if the doc is agreeable. Any experience you folks have with this would be appreciated. I'd rather she be off the stuff completely but know she must at least be weaned. She does well physically, can feed herself and is still continent.