Vyvanse usually exits the body through urine after being excreted by the kidneys with 48 hours. But, remains of the medication can be in your system for up to 2 weeks.
Vyvanse will stay in your system over 24 hours, since it is a stimulant so it doesn't accumulates over time.
Usually no more then a week, but to be completely sure I would say 2 weeks.
Vyvanse (lisdexamfetamine) is usually excreted from the body within 4 days after it is ingested; however the effects of this medication last between 10 and 16 hours after ingestion.
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Premarin typically stays in your system for about 1 to 2 days after the last dose, but its effects may last longer depending on individual physiology and dosage.
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