Our regular pharmacies here, we got all the paperwork about the med and the labels had the maker and some code number or identification..
Yours didn't have that info with it?

My dad got the generic C/L often the shape & color changed between 2 or 3 makers. But we didn't notice any issues..

There were posts many years ago about generics having more filler or lesser active percentages.. I think by soccerteses?? I probably misspelled the username..but it is close to that.. you can search for those posts with a name or keyword..

Oh taking any other meds?
After some years we had to drop the add on meds due to the accumulated side effects.. plus they weren't doing any positives by then.
Mirapex (pramipexole) was one those dropped

I think as we age we lose nutrient absorption. ..
That is written about on many website for ageing & nutrition.....
So I assume medication absorption changes too for better or worse..

When pot became legal in Oregon, we asked dad if he wanted to try it or CBD oil
, we had asked his neuro too but she claimed no knowledge on it and PD, so my parents did not want to give it a try.. Anxiety and hallucinations/delusions were a main symptoms by then.. and fatigue..