How Long Does Oxycodone Stay in Your System?
Oxycodone — the active ingredient in OxyContin, Percocet, and Roxicodone — is a short-acting opioid that leaves the bloodstream within a day but stays detectable longer. Extended-release OxyContin lasts longer than immediate-release. Here's the full timeline by test type, plus what the different formulations mean.
Oxycodone is a semi-synthetic opioid prescribed for moderate to severe pain. It's the active ingredient in several familiar medications — OxyContin (extended-release oxycodone), Percocet (oxycodone plus acetaminophen), and Roxicodone (immediate-release). If you're asking how long oxycodone stays in your system, the answer is similar across these products, with one key exception: extended-release formulations linger longer.
Oxycodone's half-life is about 3 to 5 hours (longer for extended-release OxyContin), so it clears the bloodstream within roughly a day. In urine it's commonly detectable for 1 to 4 days, longer with heavy or extended-release use.
Oxycodone's Half-Life and How the Body Clears It
A drug's half-life is how long half a dose takes to leave the bloodstream. For immediate-release oxycodone it's about 3 to 5 hours, meaning the drug is largely cleared from the blood within roughly a day. Extended-release OxyContin is formulated to release slowly over about 12 hours, so its effective half-life — and how long it stays measurable — runs longer. Oxycodone is metabolized by the liver into metabolites (including oxymorphone) that drug tests can detect.
How Long Is Oxycodone Detectable by Drug Test?
A testing note worth knowing: oxycodone doesn't always show up reliably on a basic opiate screen, so many panels use a specific oxycodone test. Approximate detection windows:
| Test type | Approximate detection window |
|---|---|
| Urine | Commonly ~1 to 4 days after last use |
| Blood | Up to ~24 hours; short window |
| Saliva | Up to ~1 to 2 days |
| Hair | Up to ~90 days |
These are general estimates. Actual detection times vary by dose, formulation, duration of use, metabolism, and lab method — treat them as approximate.
Immediate-Release vs. Extended-Release (OxyContin)
This is the main variable that changes the timeline. Immediate-release oxycodone (Roxicodone, the oxycodone in Percocet) acts quickly and clears faster. Extended-release OxyContin is designed to release the drug gradually over about 12 hours, so it maintains a measurable level in the body longer and can extend the detection window. Same active drug — different release profile.
Does a 5 mg vs. Higher Dose Change How Long It Lasts?
Half-life is a property of the drug, not the dose, so a 5 mg and a higher single dose of immediate-release oxycodone clear at roughly the same rate. A larger dose starts from a higher level, so it takes somewhat longer to fall below a detectable threshold — and repeated dosing matters far more than any single dose. Formulation (IR vs. ER) affects the timeline more than milligrams alone.
What Affects How Long Oxycodone Stays in Your System
- Formulation — extended-release (OxyContin) lasts longer than immediate-release
- Dose and duration of use — higher, longer use extends clearance and detection
- Liver and kidney function — oxycodone is metabolized hepatically and cleared renally
- Metabolism, age, and body composition — individual physiology shifts the timeline
Oxycodone overdose is a medical emergency. Signs include slowed or stopped breathing, blue lips or fingertips, pinpoint pupils, and unresponsiveness — and risk rises sharply when oxycodone is combined with alcohol, benzodiazepines, or other depressants. Call 911 immediately and give naloxone (Narcan) if available.
Oxycodone Withdrawal and Why Detox Matters
With regular use, the body becomes dependent on oxycodone, and stopping brings withdrawal: muscle aches, nausea, vomiting, diarrhea, sweating, chills, agitation, and intense cravings. It's rarely life-threatening on its own, but it's miserable enough that many people relapse to make it stop — which is exactly why medically supervised detox matters. A structured detox manages symptoms with appropriate medication and monitoring, and can bridge into medication-assisted treatment for lasting recovery.
Getting Help With Oxycodone Dependence
Oxycodone dependence often begins with a legitimate prescription and develops without anyone intending it. If you're taking more than prescribed, running out early, or unable to stop, help is available and effective. At West Georgia Wellness Center in Hiram, GA (serving metro Atlanta), our medical detox and residential treatment programs manage opioid withdrawal safely, and our dual diagnosis program treats the pain, anxiety, or depression underneath.
Opioid withdrawal is hard to face alone — our team can help you through it safely. Free, confidential, 24 hours a day.
Call 470-625-2466 — Confidential AssessmentFrequently Asked Questions
This page is educational and isn't medical advice. Detection windows are estimates that vary by drug, formulation, individual, and testing method. If you or someone else may be overdosing, call 911 immediately.