hi, I have been out on to the 15mg dose, but my doctor advised me to take a tablet every second day to avoid the side effects. He said that it would stay in my system to still aid weight loss. I was a little disappointed with my 1kg loss for my first week, as I get the impression that the first week is usually a bigger loss than later on. I am having some trouble sleeping, but I do have good energy levels during the day, so I am not too stressed about the lack of sleep. I am thinking of going on to a tablet each day to see how that goes. They are only 15mg so it should be okay I think.