How long does oxymorphone stay in your system?

Oxymorphone, an opioid analgesic, is detectable for up to 24 hours with a blood test, from one to four days with a saliva test, from three to four days with a urine test and up to three months with a hair follicle test, according to About.com. These are estimated timetables.

The exact timetable for the complete metabolism of the drug varies according to body mass, age, hydration level, physical activity and overall health, as explained by About.com. Younger patients, those with faster metabolisms, and those who are in better health tend to break down oxymorphone better than those who have kidney or liver impairment, are sedentary, or are older.