Sherri,
that's Great to hear!
I take Namenda, just a small dose @ bedtime. like 15mg. I'm going to have to speak to my doctor about that dose, as I also have a TBI, I take aricept in the AM. (Another altzheimer's med).
I honestly don't notice a big difference with the Namenda, but, I take 50-60 mgs of methadone /day also.

I'm so very thrilled for you, that you're getting such good results!

Be Well!

Pete
asb