Amphetamine, also known as speed, is usually detectable after use for about 1 to 3 days in urine, around half a day to a day in blood, and up to around 90 days in hair. With frequent use, the urine window can extend a little.
How long is amphetamine detectable?
The times below are guide values and vary per person.
| Matrix | Approximate window |
|---|---|
| Urine | ± 1 to 3 days, sometimes up to 4 |
| Blood | hours to ± 1 day |
| Saliva | ± 1 to 2 days |
| Hair | up to ± 90 days |
What does it depend on?
The acidity of your urine, dose, frequency and metabolism all play a part. Some medications can register on a rapid screen; a lab therefore confirms a positive screen with a specific method. The full overview is at how long drugs stay detectable. For a targeted test, an amphetamine screening can determine the amphetamine value.
Every test result at Zuivertest includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
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