Amantadine and Azilect

I've had PD now for three years.  I started taking LND about 3 weeks ago..., which has helped with a few things, more engery, my knees don't hurt anymore...which is great.  Here's the issue. I've had Cramping in my left foot for three years now, Always though it was due to surgery, I had a bunion.  Well, three years later, I still can't walk very far without it cramping, and it really effects my life, meaning don't due to much due to the craming....can't walk to far, not even around the block....I've had it!!!! I've tried everything I kind think of to no avail!!!!  Which one would help me....Amantadine or Azilect?????  Thank for your inputs