Ashley, your posts on LDN and the published work by Hong's group are the reasons I began using dextromethorphan, assuming it has the same properties in supressing neuroinflammation as naltrexone. So far, it seems to be working.
As I have said before, one can't be sure if this is a true indication of neuroprotection or simply a sinemet "honeymoon".
In addition to sinemet, amantadine, CoQ10 and DM, I am now taking a tsp of tumeric each day, and plan to increase that to 2 tsp next week. I see no reason to not continue this regimen indefinitely.