It's a satiety enhancer. It inhibits serotonin reuptake so make sure you're not taking any MOAs or anything. I like to stay away from shit that's serotonergic because of my horrible experiences with SSRIs but some people take them without a hitch.
Honestly, if I were dieting and eating too much I'd throw in a bit of ephedrine here and there. It kills my appetite. Aside from cardiovascular risk, I think it's a much safer route.
