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to the original question, for say a urine drug test, a regular user of oxycodone or other opioids it will take 3-6 days to leave your body completely, aim for a week to be safe, the half-life of oxycodone, meaning half the drug out of your blood stream after taking a dose is roughly 3-4 hours and the high lasts around 5 hours.
The metabolism of oxycodone to oxymorphone is catalyzed by CYP2D6. Free and conjugated noroxycodone, free and conjugated oxycodone, and oxymorphone are excreted in human urine following a single oral dose of oxycodone. Approximately 8% to 14% of the dose is excreted as free oxycodone over 24 hours after administration. Following a single, oral dose of oxycodone, the mean Â± SD elimination half-life is 3.51 Â± 1.43 hours.