of PD symptomatic relief for any amount of CoQ10. The only claims that I am aware of are for some slowing of progression of symptoms in recently diagnosed patients in Shults' small study in 2002. The effect was greatest in patients recieving 1200 mg/day. What was observed was that those taking 1200 mg per day of CoQ10 were able to delay the start of sinemet or agonist use for symptomatic relief longer than those who took 300 or 600 mg/day or placebo.