How long will it take in hours to get rid of 80milligrams of Oxycontin if you way 176 lbs and what is the best way to flush it out?

Opioids stay in the system for 3-5 days, in a healthy individual. To flush your system, drink lots of water. Don't try and take those "detox" herbs/drugs, if you are going for a drug test. The tests also check for those detoxing agents, as well.