I have been taking both hydrocodone and oxycodone for 6-9 months. As much as I could get. Now I have legal prescriptions for them for pain in my back. I want to get off, and detox myself. Can I do this with methadone. I have about 50 of them and find that taking 1 when I wake up keeps me good until night, then I take a half of one, and a 2 mg xanax. Can i continue this for a week, then cut it down to a half in am and half in pm, then quit completely and use Darvon if needed to detox from the methadone?