How do you do on JUST carbidopa/levodopa? have you talked to your neuro about this?

i have gotten "brain fog" from some generic c/l and 50/200ER and didn't try to work thru it, just switched back to my preferred generic. this happened when my independent pharmacy didn't order my preferred generic which back then was TEVA but unfortunately they don't make C/L anymore. i am using MYLAN now. i assume the brain fog is from fillers and/or colors used.