Adderall typically stays in your system for about 2 to 4 days after the last dose, but this can vary depending on several factors such as dosage, frequency of use, metabolism, age, and whether the formulation is immediate-release (IR) or extended-release (XR). Key details on detection times and clearance:
- Half-life: Adderall has a half-life of approximately 9 to 14 hours, meaning half the drug is eliminated in that time frame. It generally takes about 5.5 half-lives (around 55 to 77 hours) for Adderall to be mostly cleared from the body
- Urine tests: Adderall can be detected in urine for about 3 to 7 days after use. For a single dose, detection is usually up to 3 days, but frequent or high-dose use can extend detection up to 7 days
- Blood tests: Adderall is detectable in blood for roughly 12 to 50 hours after the last dose, typically up to 24 to 48 hours in most cases
- Saliva tests: Detection in saliva ranges from about 20 minutes after use up to 48 hours, sometimes up to 72 hours for extended-release formulations
- Hair tests: Adderall can be detected in hair follicles for up to 90 days (about 3 months) after use
Duration of effects:
- Immediate-release Adderall effects last about 4 to 6 hours.
- Extended-release Adderall (Adderall XR) effects can last 8 to 12 hours
Summary:
Test Type| Detection Window After Last Dose
---|---
Urine| 3 to 7 days (typically ~3 days)
Blood| 12 to 50 hours (usually 24-48 hours)
Saliva| 20 minutes to 48-72 hours
Hair| Up to 90 days (3 months)
Adderall clearance and detection times vary based on individual factors and dosage, but it is generally eliminated within 3 days for most people after a single dose, with longer detection possible in chronic or high-dose users
