The naltrexone bead will prevent this kind of crushing abuse in IR opioids just the same as it prevents crush-type abuse with ER opioids. Naltrexone bead will not prevent oral abuse with either ER or IR opioids, unless it is crushed first (i.e. "parachuting"). However, one could make an argument that adding a time-release component to oxy-IR such that it releases over 6-8 hours instead of 3-4 hours is, in itself, a minor deterrent to oral abuse.