"Vaccine may hold promise for those who want to break their heroin addiction"
It could work as an aid to who wants to quit.
That was my first thought, too. If your usual high no longer works, do you just use something else?
Also, if you have surgery or are clobbered by a car, can opiates be used for pain management or is that aspect blocked too?
Need a larger discussion of how this works and interacts.