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A member asked:
How long does vyvanse (lisdexamfetamine) 30mg take until it dissolve in your stomach and you start to feel the effect ?
A doctor has provided 1 answer
Early onset: Aside from being careful what time it ia taken , iti can't take it past 9am if i want to sleep at night. For me, it lasts anywhere from 13-15 hours in orhers it takes 6-7 hours . There's no serious drop-off towards the end. I also have had no issues with side effects low as I have had with other stimulant medications. Onset is usually within 1/2 hour.
Answered 3/8/2017
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