I was hopelessly addicted to oxycodone, oxycontin, heroin....any and all opiates I could get my hands on. this went on for almost four years.
I did multiple medical detoxes, with and without treatment centers. I tried tapering to no avail. never could get more than a couple months clean.
the only thing that has worked for me was quitting cold turkey and giving myself 100% to a 12 step program. the 12 steps changed my personality and I haven't the need for an opiate or any drug in over two years.