It would discourage pushing over prescription, encourage more work into accurately identifying addictiveness (and presumably reducing it), and if all else fails would encourage them to develop cheap drugs to recover from addiction.
When you get back from the hospital they will come take your drugs.
Why? Nothing personal, just that unlike many of your rural brethren, you have insurance.
People deliberately created your guests and are profiting even now from your pain, should they be shut down?
But making manufacturers responsible for covering costs for recovery/withdrawal from drugs they sell would encourage them to work to make drugs less addictive (currently making an addictive drug is a perpetual money printing machine), and result in them coming up with better/faster/cheaper drugs to withdraw.
I mean if an individual stage did this of course they’d just bribe (I mean support) some senators to make such a rule unenforceable at a federal level.
Assuming that it is 'easy' to tell who is abusing drugs in itself sounds like a way to do a lot of harm.