Oxycodone is usually detectable in urine for about one to four days after the last dose, in saliva for one to two days, in blood for up to about 24 hours, and in hair for up to 90 days.5 The exact window depends on the test used, the formulation, and the person taking it.
The same general ranges apply to the products that contain oxycodone, including OxyContin, Percocet, and Roxicodone. The main difference is that extended-release OxyContin tends to stay detectable a little longer, because it releases the drug slowly over about 12 hours.5
Key Points
- Oxycodone is usually detectable for about 1 to 4 days in urine, 1 to 2 days in saliva, up to about 24 hours in blood, and up to 90 days in hair.
- These are estimates; the real window depends on the dose, how long it has been used, and factors like metabolism and kidney and liver health.
- Extended-release OxyContin tends to stay detectable a bit longer than immediate-release oxycodone, Percocet, or Roxicodone.
- Standard opioid screens are built around morphine and often miss oxycodone, so a specific oxycodone test or a confirmatory lab test is needed to detect it reliably.
- Time is the only dependable way to clear oxycodone; detox kits and home remedies are not reliable.
- If worry about a drug test is driving the question, that can be a sign it is worth talking to someone about treatment.
In This Article:
- How long does oxycodone stay in your system?
- Detection times for Percocet, OxyContin, and Roxicodone
- How oxycodone moves through the body
- What oxycodone drug tests actually detect
- What affects how long oxycodone stays in your system
- Can you get oxycodone out of your system faster?
- Getting help for oxycodone use
- Oxycodone detection FAQs
How Long Does Oxycodone Stay in Your System?
How long oxycodone stays detectable depends mostly on the type of drug test. Blood tests have the shortest window and hair tests the longest, with urine and saliva in between. The figures below are approximate, measured from the last dose.5
| Test | Approximate detection window | Notes |
|---|---|---|
| Blood | Up to about 24 hours | The shortest window; used to confirm very recent use |
| Saliva | About 1 to 2 days | Detectable within minutes of a dose |
| Urine | About 1 to 4 days | The most common test; the window can be longer with heavy or long-term use |
| Hair | Up to about 90 days | Reflects longer-term use and takes 1 to 2 weeks to show up |
These ranges are general estimates, not guarantees. The same dose can clear faster in one person and slower in another, and heavy or long-term use pushes the window toward the longer end.
Detection Times for Percocet, OxyContin, and Roxicodone
Percocet, OxyContin, and Roxicodone all contain the same drug, the opiate oxycodone, so a drug test detects the oxycodone rather than the brand. The detection window mostly comes down to whether the product is immediate-release or extended-release.5
| Product | Form | Contains | Detection note |
|---|---|---|---|
| Oxycodone (generic) | Immediate-release | Oxycodone | Follows the baseline windows above |
| OxyContin | Extended-release | Oxycodone | Tends toward the longer end, since it releases over about 12 hours |
| Percocet | Immediate-release | Oxycodone and acetaminophen | The oxycodone clears like immediate-release oxycodone; tests detect the oxycodone, not the acetaminophen |
| Roxicodone | Immediate-release | Oxycodone | Similar to generic immediate-release oxycodone |
How Oxycodone Moves Through the Body
After a dose, oxycodone is absorbed from the gut, processed by the liver, and cleared by the kidneys. Immediate-release oxycodone has a half-life of roughly three to five hours, meaning it takes that long for the body to clear half of a dose, and extended-release OxyContin is a little longer.5 A drug is generally considered mostly cleared after about five half-lives, but traces and metabolites linger longer, which is why tests can detect it for days.
The liver breaks oxycodone down into other compounds, mainly noroxycodone and oxymorphone, through the cytochrome P450 enzyme system.3 Lab tests often look for these metabolites as well as the oxycodone itself, because finding the parent drug and its metabolites together confirms genuine use. How quickly a person produces and clears these metabolites varies with their own enzyme activity, which is part of why detection windows differ from person to person.
What Oxycodone Drug Tests Actually Detect
One detail surprises many people: a standard opioid screen does not reliably detect oxycodone. The common opiate immunoassay is built around an antibody for morphine, and oxycodone is different enough chemically that it cross-reacts poorly. It can take far more oxycodone than morphine to trigger a positive, so oxycodone use can pass a basic screen undetected.3
To detect oxycodone dependably, a lab uses a test designed specifically for it and its metabolites, or a confirmatory method such as gas chromatography or liquid chromatography with mass spectrometry (GC-MS or LC-MS).3 Federal workplace urine testing added oxycodone and oxymorphone to its panel in 2017, with a confirmatory cutoff of 100 nanograms per milliliter; a sample below that cutoff is reported as negative even if traces are present.4
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What Affects How Long Oxycodone Stays in Your System
Detection windows are estimates because so many factors shift them. The same dose can clear at very different rates depending on the person and the pattern of use.
- Dose and how often oxycodone is taken
- Whether it is immediate-release or extended-release
- How long a person has been using it, since heavy or long-term use extends the window
- Individual metabolism and liver enzyme activity
- Age, body composition, and hydration
- Kidney and liver function
- Other medications that affect the same liver enzymes
Can You Get Oxycodone Out of Your System Faster?
There is no reliable way to flush oxycodone out quickly. Time is the only method that consistently works, because the liver and kidneys need time to break the drug down and clear it.
Drinking large amounts of water, exercising, or using over-the-counter “detox” kits and drinks does not dependably remove oxycodone or its metabolites, and some of these approaches carry their own risks. Drinking too much water can be dangerous, and labs can often spot a sample that has been diluted or tampered with.
If the reason for asking is an upcoming drug test, it can help to step back and look at the bigger picture. Worry about a test is sometimes a sign that oxycodone use has become harder to control. Medically supervised detox and treatment exist for exactly that, and reaching out for help is a strength.
Getting Help for Oxycodone Use
Oxycodone relieves pain, but it carries a high risk of dependence and addiction, even when taken as prescribed.2 If your use has become hard to control, effective, evidence-based treatment is available.6
Treatment usually starts with medical detox to manage opiate withdrawal, followed by inpatient or outpatient care. Medication-assisted treatment with methadone, buprenorphine, or naltrexone can reduce cravings and lower overdose risk.
Oxycodone Detection FAQs
Does oxycodone show up as an opiate on a drug test?
Not always. Standard opiate screens are designed around morphine and often do not reliably detect oxycodone. A test that specifically looks for oxycodone, or a confirmatory lab test such as GC-MS or LC-MS, is needed to detect it dependably.3
How long does one Percocet stay in your system?
A single dose of Percocet follows the same general windows as immediate-release oxycodone, roughly 1 to 4 days in urine. The acetaminophen in Percocet clears separately and is not what opioid drug tests look for.
Does OxyContin stay in your system longer than regular oxycodone?
Slightly. Because OxyContin is extended-release, the oxycodone is released and cleared more slowly, so it can stay detectable toward the longer end of the ranges.5
Can you flush oxycodone out of your system?
No method reliably speeds this up. Time is the only dependable way for the body to clear oxycodone, and water, exercise, or detox products do not change that in a way you can count on.
How soon after taking oxycodone will it show up in urine?
Oxycodone usually appears in urine within a few hours of a dose and stays detectable for about 1 to 4 days, depending on dose and use pattern.5
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References
- MedlinePlus. Oxycodone. U.S. National Library of Medicine; 2026. https://medlineplus.gov/druginfo/meds/a682132.html. Accessed June 2026.
- United States Drug Enforcement Administration. Oxycodone Drug Fact Sheet. DEA; 2025. https://www.dea.gov/sites/default/files/2025-01/Oxycodone-Drug-Fact-Sheet_0.pdf. Accessed June 2026.
- Mayo Clinic Laboratories. Interpretation of Qualitative and Quantitative Urine Opiate Tests for Pain Management Patients. Mayo Clinic Laboratories; 2021. https://news.mayocliniclabs.com/2021/05/03/. Accessed June 2026.
- Substance Abuse and Mental Health Services Administration. Frequently Asked Questions About Federal Workplace Drug Testing. SAMHSA; 2026. https://www.samhsa.gov/substance-use/drug-free-workplace/faqs. Accessed June 2026.
- Drugs.com. How Long Does Oxycodone Stay in Your System? Drugs.com; 2026. https://www.drugs.com/medical-answers/long-oxycodone-stay-system-3573045/. Accessed June 2026.
- Substance Abuse and Mental Health Services Administration. Treatment Options for Substance Use Disorder. SAMHSA; 2025. https://www.samhsa.gov/substance-use/treatment/options. Accessed June 2026.
