Its 32% (provenge) vs. 23% placebo... But what of the other 45%? The side-effects don't sound good either, nor does it mention how long those last... Saw Palmetto (as well as other natural remedies) don't have any unpleasant side effects, and are proven to prevent prostate cancer. I swear, pharmaceutical corporations will do anything to make money these days, and the FDA is their bitch.