A member asked:

I took a 30mg vyvanse (lisdexamfetamine) for the second time ever saturday night. i am a college athlete who drank a lot of water, how long will the drug be in my urine?

A doctor has provided 1 answer

>2 days: The half-life of this medication is 12 hours. It will take 60 for it to clear your system completely if you take no more.

Answered 4/19/2018

3.2k views

Thank

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