My husband was given Aricept when he was first diagnosed in 2016, but he developed severe leg cramps and I spoke to the Memory Clinic about it, and they changed him onto Rivastigmine. In 2018, the mental health doctor put him on Memantine and he still takes them. Of course, we have no idea whether they are doing any good, as the disease progresses and every day can be different. We have gone through several stages of agitation, he believes his wife left one night and now he says she’s dead! (We’ve been together nearly 40 years). I seem to have slotted in to her place. I still can’t get used to the idea of not discussing things with him as we have always done, so I end up telling him things but either getting a blank stare back or a refusal to cooperate!!