... pharmacokinetics of Vyvanse. I see that it reaches therapeutic levels in one hour, but I see nothing about peak action or duration. So when a student takes their Vyvanse at 6:30 AM, how does the rest of his or her day look? Thanks
Hi, I'm currently taking Vayvance and one thing I can tell you is it seems to be different for everybody. For me, I can feel it start to work just over an hour and it seems to peak at about 5 hours after I take it. After the 5 hours it doesn't have near the strength it had before that. But after the 5 hours it still last for another few hours, but no where near as effective.
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