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A 19-year-old female asked about a 20-year-old female:

will vyvanse (lisdexamfetamine) 30mg affect a drug test after one dose?

3 doctor answers6 doctors weighed in
Dr. Paul Grin
Pain Management 36 years experience
It will for 2 days: Average half-life is about 8 hours. It takes approximately 6 half lives for a drug to be eliminated from your system. 8*6/24=2 days. The vyvanse (lisdexamfetamine) will stay in your system for 2 days. Amphetamine-type medications can be habit-forming.
Dr. Johanna Fricke
Developmental and Behavioral Pediatrics 50 years experience
Yes, depending on : When testing is done relative to when it was taken. However, "drug screens" are read as positive by the concentration of a drug or its metabolite in the urine sample; therefore, depending on timing, the concentration may fall below the cut-off point for a "positive" screen. It isn't a problem for anyone who can show a prescription bottle in his or her name. Diversion is a different story.
Dr. William Singer
Pediatric Neurology 51 years experience
Depends: It depends on when you have the test after you take the Vyvanse (lisdexamfetamine)

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Last updated Oct 30, 2018
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