Advice please

Hi all,
Just recently read about Ubiquinol helping symptoms of PD . Has anyone got any advice about taking this drug. Has anyone had any benefit from it or is it just another drug that people say will help but it never does.
its a form of co-enzyme q10.
unfortunately it seems it may not do any good
I am taking it anyway - cannot tell if it works but as it is recommended for "older" people to aid memory etc. I don't feel it can do any harm.

Anyone any advice about vitamins B6 and B1? Recommended in a great book called Natural Therapies for Parkinsons published in the States but which I have downloaded to my Kindle.