I agree with sonick. I have a friend who suffered a heart attack. His two year, doctor supervised (ADD) Cylert habit "may have been a contributory element" in his heart failure. He is ok now but his doctors will never prescribe him Cylert again. Instead, he chugs redbulls all day.

Explain this one to me: why is Ritalin CII whyle Cylert is CIV??