Hi I have adhd and I need to pull an all nighters. Yes I really do have adhd and my rx?s are valid and mine blah blah blah. Basically I have ir dextroamphetamine 10 mg in morning and 20 mg at 1-2 pm and 4-5 pm that I take to boost my vyvanse (60 mg) and for afternoon hw. But the vyvanse has worn off and dextroamphetamine alone isn?t working. Is it ok to take a second dose of vyvanse so I can focus tonight, and for future all nighters? I know it?s bad to pull all nights don?t need that lecture i?m pre-med and have adhd all nighters happen sometimes. It?s not to stay awake, I have insomnia so no worries i?d be up anyway, I just can?t focus.