ephedrine will help supress her apetite, which can help if she can't control it as much as she'd like, in the ways of fat loss, it's actions are not great, but I suppose they do accumulate with prolonged use.
What is the most important thing, is to get her diet proper... so you might want to check out the diet discussion board for that stuff..
but I suppose you came here for some drug/supp info that can help her... so I will make some recommendations based on what has worked for me..
1.green tea extract
2.nicotine gum
3.r-ala
4.e/c/a (ephedrine/caffiene/aspirin)