Hey...when I got my refil I got the caraco kind too. I wasn't real sure about it either. So far I guess it's okay. I'm still taking half a day. I am hungry by dinnertime, but I can eat something pretty small and be okay til morning. So I guess it works. I have had issues sleeping this week...but i attribute that to not taking phen for over a week and then starting this caraco stuff. I'm hoping by next week the sleep will be lined out again!