The effects of Vyvanse (lisdexamfetamine) can vary from person to person, but typically, a single dose can last around 10 to 14 hours. Taking three 70mg doses would significantly increase the duration of wakefulness, possibly extending it beyond 24 hours. However, such a high dosage is not recommended and could lead to serious side effects or health risks. Always consult a healthcare professional for guidance on medication use.
No, it is not recommended. The highest daily dose is 70mg; taken shortly after awakening in the morning. This level of dosage (70mg) is reached after a month or more of slight (10mg) weekly increases to build up to the 70mg dose. Taking 100mg at once would be incredibly dangerous and even if you spread the doses apart (i.e. 8 am and 1 pm) it would be just as dangerous because of Vyvanse's long half-life.
Crystal Meth, Extacy, LSD all will keep you awake for long periods with continued dosage.
Depends on your tolerance. Is this your first dose? If it is, it is likely to last a very long time. Depends on your body chemistry. For some, it will last 3.5 hours before it loses efficacy. For others, it will last DAYS on a first dose, and you won't sleep for upwards of 48 hours. Source: Personal experience.
It depends if you just used it once or keep snorting it i snorted a whole container in about 17 hours and i was awake for a little over two days
That depends on your tolerance & such. But probably at least 2 days.
marijuwana
Just decreased effectiveness. Vyvanse molecules remain stable for long periods of times.
If I eat any pizza within four hours of going to bed, I am awake all night long. I wish I knew what was in pizza that would cause insomnia.
they can stay awake for a very very very very long time!!
Usually no more then a week, but to be completely sure I would say 2 weeks.
It can keep you awake for a very long time but when it wears off, you'll crash. Not a great feeling.
an ipod, headphones pillow or something soft to sleep on cds strong mint chewing gum if you have to keep awake :)