Substances - Cocaine: How Long Does It Stay in Your System?
Cocaine itself clears the body in hours, but its primary metabolite benzoylecgonine remains detectable for days to weeks depending on the test type and frequency of use.
Archangel Centers
Published May 8, 2026 by Archangel Centers Clinical Team
Cocaine vs. Benzoylecgonine
Cocaine itself has a short half-life of roughly 1 hour. The body rapidly metabolizes it into benzoylecgonine (BZE), which is what most drug tests detect. BZE is detectable much longer and is the reason cocaine shows up on urine tests days after use.
Detection Windows by Test Type
| Test | Occasional Use | Heavy Use |
|---|---|---|
| Urine | 2-4 days | Up to 14 days |
| Blood | 12-24 hours | Up to 48 hours |
| Saliva | 1-2 days | Up to 3 days |
| Hair | Up to 90 days | 90+ days |
Factors That Affect Detection
- -Frequency and amount of use
- -Body fat percentage (BZE accumulates in fatty tissue)
- -Kidney function and hydration
- -Metabolic rate and age
Getting Help in New Jersey
If you are concerned about cocaine use, Archangel Centers provides confidential assessment and treatment at 44 Apple St STE 3, Tinton Falls, NJ 07724. Most major insurance plans accepted. Call (732) 889-5400.