Well I think for #1 we need to understand how many got on this path from a medical provider. We cannot just assume the epidemic is the result of bad diagnoses. The numbers are just too high. It is just more likely that the price point reached for this strong of a drug and the ability to get it to users reached critical mass.
with regards to #2, it would good to know death rates and severe medical incident numbers in any localities to see how much of an effect such an approach is having.
#3 should be requiring all police departments having the training and recovery drugs necessary to pull someone out of an overdose along with no charges being filed for any parties involved in such a call.
this problem has been around a long time and only recently was it even addressed at the highest levels. it seemed like the problem everyone wanted to ignore
2) Give safe drugs to addicts. Anonymously. Offer help, but don't force anything.