I am at 50mg. The first few days when I was on 30mg it worked. Now I just feel more awake for a few hours, thirsty, lost some weight and feel very confident and can get annoyed easier. but the focus doesnt seem there. I feel like things are more clearer in vision wise, maybe speaking as well since it's making me talk accesiley, but again I dont feel the focus anymore. Do I have to go up to 70mg or need another prescription? I see my doctor in 2 weeks.