Kris,
Just read your question concerning the weight loss product. I am not an
expert in this area but I am starting to use herbs personally with my family.
I believe Parsley can dry up her milk. Also Ephedra is a natural decongestant
and may also dry up her milk. My reference is "Today's Herbal Health" by
Louise Tenney, M.H. Sorry I don't have time to  look up any other ingredients
right now. With all these conversations about herbs it looks like all LC's
should add some herbal reference guides to our libraries!
Robin B. Frees, BA, IBCLC Malvern, PA