In article . com,
Pace Sanders wrote:

David Wright wrote:

Thanks for your comment Jeff but I suspect there are still some out
there who are not aware of the carcinogenicity of Ritalin.

Like you, for example. I could only find two studies on the subject,
both in rats or mice. The conclusion was that there was little
evidence of carcinogenicity from methylphenidate,and in some cases it
actually seemed to *reduce* the instance of tumors.

"a little evidence of carcinogenicity" is enough for me.

You can find a *little* evidence that just about anything is
carcinogenic. However, initial tests often seem to show things that
later turn out not to be true. In any case, this was in mice and
rats, which are often poor models for what happens in humans.

-- David Wright :: alphabeta at prodigy.net
These are my opinions only, but they're almost always correct.
"His staff loves to say Bush is a man who doesn't know the
meaning of the word 'quit.' Well, apparently he's not all
that conversant with the word 'shame' either." (Will Durst)