How Long Does Cocaine Stay in Your System?

Cocaine detection windows vary by test type and use pattern.

Detection Windows

• Urine: 2–4 days (heavy use: up to 7 days)
• Blood: 1–2 days
• Saliva: 1–2 days
• Hair: up to 90 days

Factors Affecting Detection

• Amount and frequency of use
• Metabolism
• Kidney and liver function
• Hydration level

How Tests Work

• Tests for benzoylecgonine (cocaine metabolite)
• Initial immunoassay screen
• GC-MS confirmation for positives