Oxycodone is a prescription opioid used for pain relief, and its presence in the body depends on factors like dosage, metabolism, age, and overall health. After ingestion, oxycodone typically stays in the bloodstream for 3–6 hours, but its metabolites can be detected in urine for up to 3–4 days, in saliva for 1–4 days, and in hair for up to 90 days. The drug is processed by the liver and excreted through the kidneys. Effects include pain relief, drowsiness, and euphoria, but misuse can lead to dependence, respiratory issues, and other health risks. Individual factors affect both metabolism and detection times.