Interested to know the answer myself!

Thank you.

I’ve been taking B1 since about April. I’ve had to stop & restart a couple of times, but I notice a significant return of fatigue when I’m off of it. Definitely read the book & go to the Facebook page (Parkinson’s B1 Therapy). I think I have finally found my sweet spot…which for me is 50mg daily taken sublingually. I have only a mild internal tremor & slight gait issue (on my left side/leg). I’m trying anything natural before going the pharmaceutical route. I have yet to start any meds except Azilect 1mg daily. It’s worth a try. It’s inexpensive and a very safe alternative to try.