Alice Masterson answered bob brown's question 1/24/2012 If you snort an ir 15mg oxycodone how long does it stay in your system? 2-4 days, depending on how much you do. That is, if you are a regular user than it will take a little longer, maybe a week. I can't see it being any longer than 4 days if you just done a couple of 15's.
