I have been diagnosed with early onset Dementia/Alzheimer's.I have tried Namenda XR ( 1 titration pack plus 3 refills). Neuro told me to stay on it for 3 months.$600 for a 3 month supply. Complained about pain behind the knee. Switched to Aricept 2x daily, and while I loved how I felt on it, same knee problems.Restarted with titration Namenda and started generic. I took my own self off. Can't bend and tightness walking. Now Neuro is talking about the patch which I can't remember the name. Has… read more