Creatine is widely used by the muscle building and amateur sports world. Said to increase energy and build muscle. Has a pretty good safety profile and is cheap.

I've been using it just three days and from the standpoint of PD it is great stuff. My legs had been getting progressively weaker and muscle atrophy was evident. I had been taking extra sinemet to try to counter the problem and was getting loopy from it. Also a lot of dyskinesia and erratic sleep patterns. Some incontinence developing.

After just three days most of that is just gone! Legs growing stronger by the day. Cutting back on the sinemet, which is lasting longer. Dyskenisia 90% gone. Sleeping like a log, especially during the first 24 hours.

Hope springs forth once more.