Ok just a thought here, maybe you’re just really tired? That sounds like a long day and I know if I had to focus that long I’d be exhausted, meds or no meds. I’m not sure they would help you if you are tired. My doctor told me that if you are tired meds in general don’t work as well and has asked me if I’m stressed at times when I said the various ones weren’t working. So not sure that’s an official answer, but figured I’d at least keep the topic alive 
Re: Does stressful sustained mental focus burn through the meds more quickly?nellie2011-07-16T10:30:21+00:00