The one thing Purdue and Pfizer have in common when it comes to abuse deterrence for opioids is that their technologies seem to follow flaws.
Embeda as mentioned on another board has the opioid on the outside layer of the pill while the naltrexone resides in the middle of the pill. Wonder if HAL studies were done on Embeda to find out whether the opioid on the outer layer was suseptable to tampering? Maybe... maybe not.
Seems to me that when there are two different beads and one cannot tell them apart and which bead contains what and there may be many many beads per pill that Elites technology would be superior to that of Pfizers in that regard.