After single use, cocaine is usually detectable for about 1 to 4 days in urine, a few hours to a day in blood and saliva, and up to around 90 days in hair. With frequent use, the urine window can extend. A lab measures the breakdown product benzoylecgonine and gives a quantified value, not a faint line.
How long is cocaine detectable per matrix?
The detection window depends strongly on the matrix and on how often someone uses. The times below are guide values, not a guarantee.
| Matrix | Single use | Frequent use |
|---|---|---|
| Urine | ± 1 to 4 days | up to ± 1 week |
| Blood | hours to ± 1 day | ± 1 to 2 days |
| Saliva | ± 1 to 2 days | ± 2 days |
| Hair | up to ± 90 days |
What does the window depend on?
Frequency and dose, your metabolism, how much fluid you drink and the sensitivity of the test all play a part. That is why the outcome varies per person. A broader view of all substances is in our overview of how long drugs stay detectable. If you want to screen for this substance specifically, a cocaine screening can determine the cocaine value for you.
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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