How Long is Amphetamine Detected in the System?
Your body can eliminate half of the amount of amphetamine that you take in under 11 hours. So, the half-life of speed is about 1/2 a day. However, long-lasting amphetamine use can be detected in your system up to one week after your last dose. In this infographic, you can learn more about how long the effects of amphetamine last, average amphetamine detection times, and drug testing basics for amphetamines.
How long does amphetamine stay in your system? Keep reading to find out!
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Amphetamine Testing Detection Windows
Drug Name: Amphetamine
Drug Class: Stimulant
Street Names: Speed|
Urine: Urine tests can detect amphetamines for up to 48 hours, unless you’re a heavy user. In this case, it may be in your system for up to a week after your last use.
Hair: A hair test can detect the drug in your system for up to 90 days.
Blood: Amphetamines will stay in your blood and saliva for up to 12 hours.
What Influences Amphetamine Detection Times?
The main factors that influence detection times of amphetamine include your:
- age
- amount of drug used
- body size
- fluid intake
- gender
- length of usage
- metabolism
- method of ingestion
- percentage of body fat
- tolerance
- weight
NOTE: Drug detection times in urine, blood, and hair are an average and can vary greatly by individual. The information in this infographic should be used as a general guideline only.
Amphetamine Detection Timelines Questions
Want to learn more about drug testing and detection timelines? Download our FREE e-book The Definitive Guide To Drug Testing.
If you struggle with amphetamine dependence and fear that it will show up on a drug test, you probably have a problem. If you decide to talk about it, 1-877-721-4914 line is open to provide help. Get in touch with a trusted addiction recovery consultant! The helpline is free, and available any time of the day or night.
Still have questions? If you still have questions about this amphetamine infographic, please post them in the comments section at the end. We are happy to try to answer your real-life questions personally and promptly.
Reference Sources: NCBI: Urinary excretion of d-amphetamine following oral doses in humans: implications for urine drug testing.
OSTI: Drug Retention Times
FDA: Drugs of Abuse Home Use Test
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