Anyone have experience with Meds prescribed for Dementia?

[F.W.D]

Although I'm only 66 y.o. my wife was concerned about my sometimes forgetfulness and family history of Alzheimer's  so she brought it up with our MD. He ran some silly memory test and put me on medications. Donepezil had awful gastrointestinal  side effects. Memantine is tolerable but I can't tell it's effective at all. Galantamine same thing. Personally I think all these cognitive enhancers and dementia meds just make you forget things. Anyone else have experience with these issues? would like ti hear your opinions. Tnak you, F.W.D
[url=https://www.alz.org/alzheimers-dementia/treatments/medications-for-memory#memantine][/url]