Hardon, 15mg of hydrocodone is not a high dose even for a non tolerant user, my personal minimum dose is 30mg. I also advise against snorting pills with acetaminophen, since this means the tablet is comprised of less than 1% hydrocodone so the other 99% of shit clogs your nose up. They were on no other drugs? That isn't much more than a prescribed dose, so your friend is either pretty sensitive to opioids or it was a psychosomatic response.

Gothen, I hope these are time release formulations and you didn't break them because 120mg is a hell of a lot of oxycodone if you have no tolerance to opioids.
Your pills appear to be .5mg and I urge you not to combine them with such a high dose of oxycodone.
http://www.rxlist.com/cgi/rxlistid.c...93832&x=11&y=9

I believe the drugs should be out of your system within 72 hours.