What exactly does this mean?
Apart from interval visits (at which you can learn nothing useful from a drug addict), what sort of "watching" do you think should be done?
If you were Rush Limbaugh's doctor, how would you "watch him better"? I mean, specifically, what yould you recommend that a doctor could actually do?
Pill addicts are a nightmare in your practice. They are expert liars and decievers, whose entire day is structured around scoring off of you in a fifteen minute encounter, which for you is one of twenty to forty such encounters-one right after the other.
"Watching them closer" is for television. We, unfortunately, work in reality.