It’s similar to an old Endo drug...Nalbuphine, an agonist/antagonist for pain. Embeda is same principle....less addicting (wink, ) . It a combo of morphine and naltrexone. With the current opioid epidemic it won’t see the light of day.
It was a good idea. It was abuse deterrent morphine. The problem was that many doctors didn't switch their patients to it. Their reasons were quite nefarious. The shit storm coming over the doctors now is well deserved.