I haven't gained any weight due to pd meds. I have maintained pretty much the same (over) weight physique since my PD diagnosis.
I will say that while I was web searching and trolling through PD symptoms, I found the ONE symptom I WANTED to get:
"... unexplained weight loss..."
Sheesh - why is it only skinny people get that one? I askd my neuro and she just laughed.
best,