today we were studying oral novel drug delivery systems. The class was prerecorded (due to pandemic) There was this table in the slides "strategies and benefits of modifying drug release table" and I don't know what book it is.
So as you see, the last one is about prevent release. Our professor only mentioned that this system has the drug in it but it does not release at all, so it does not have any therapeutic benefit. It is stated it is used for opioids for avoiding abuse.
My question is: Why do we load active substance when we don't want any release? What is the difference between this system and placebo?