A 37-year-old male asked:
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i took 160mg of generic adderall (dextroamphetamine and racemic amphetamine) in two days how long will it take to be out of my system? i have a urine test in two weeks will it still show up ?

2 doctor answers
Dr. Steven Griggs
38 years experience Clinical Psychology
The half-life of: Adderall (dextroamphetamine and racemic amphetamine) is between 9 and 13 hours, depending upon the type and your metabolism. Take the average of 10 hours as an example. Take 10 MG and ten hours later only 5 MG is left, and ten hours after than 2.5 MG, etc. At this rate, only one dose would be out of your system in a few days. Better to tell the testers of your use, just in case, especially if legit.
Answered on Sep 29, 2016
Dr. Johanna Fricke
49 years experience Developmental and Behavioral Pediatrics
The maximum adult : daily dose of MAS is 40 mg. for ADHD & 60 mg. for narcolepsy. You're risking HBP, heart attack &/or stroke. A drug's "half-life" is the time it takes takes for its blood level to decrease by half. It takes about 5 ½ half-lives for a dose to be completely "gone". Other factors are duration of use, body size, metabolism, GI & urine pH. It would show up in hair, but probably not urine, in 2 weeks.
Answered on Nov 27, 2017

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Adderall (dextroamphetamine and racemic amphetamine): Adderall (dextroamphetamine and racemic amphetamine) has a half-life of 9 to 14 hours. Assuming normal excretion on the outside of 15 hours, times fi ... Read More
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Dr. Monika Heller
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Detection: Amphetamines can be detected in saliva for 3 days, urine for 1-4 days, and in hair for up to 90 days.
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It's of no concern : If you take your prescription bottle with you to the drug screen. If you have diverted it, it depends on whether you've been taking regular (short-act ... Read More

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