Would you please give a link or the actual name?
    This is the Pain and Stress Center.
http://www.painstresscenter.com/

I did not find lithium listed.

Lithium is an interesting subject and now I'm going to have to find out if they make a synthetic of a natural product.

This one appears to be natural.
http://www.feelserenity.com/gc/productinfo.htm
"When natural lithium is combined with an organic 'mineral carrier', a little bit goes a long way."

Parent site of the above.
http://www.feelserenity.com/gc/?b=4983&GCID=S15771x191&KEYWORD=natural%20lithium

There is some mention of the prescription version.

Wayne