I don't know the stats but I am inclined to believe most overdose cases are addicts not first timers. You do know that there is addiction to painkillers not just to hard drugs? Risky behaviour, like taking pills of unknown source, is more likely for addicts. Let's look after them first.

As for not having enough treatment centers....read the headlines on this paper every day: public funds wasted on buying votes and pleasing various groups. If only those in power were committed to addressing problem not just to grandstanding.