Oxycodone is used to treat moderate to severe pain. Before you buy Oxycodone online and take it you must know how long does Oxycodone stay. When you take it the first time it stays for 24 hours and starts its effect within 20 to 30 minutes. The tested sample which part of our body in our system. For short-action opioids, it stays for 4 to 6 hours, and for long-action opioids, it stays for 8 to 12 hours. its half-life is over in upto 3hours. If you know more about Oxycodone then must visit : https://bigpharmausa.com/pain-relief/oxycodone/ Drug Tests: In a urine test, it will clear in one to three days after the last dose is taken. In a blood test, it will clear in five half-lives or 15–20 hours. In a saliva test, oxycodone may be detectable for one to two days after the last dose taken. In a hair follicle test, it can be detected for up to 90 days after the last dose taken.