I haven't taken that one. But many of us end up continuous opiate maitenance - most on a long-acting opiate so that you have a steadier serum level. Less ups and downs. I am not sure if methadone is technnically a long-acting opiate. It does have a long half life, which means it stays in your body a long time. Can make it a little harder to get off of.
The pluses are that it is very effective for neuro pain. It is very cheap. Downside is some complain that they felt out of it. On the other hand it was designed to get you less high then heroine. Maybe the out of it feeling is only a problem at high doses. I have heard many great things about methadone as a pain reliever. Don't be put off by its reputation.
Being on a continuous dose works much better to stop pain. You are waiting for the pain to get bad and then beating it down. It is a much more effective way to manage chronic pain. Less high, less ups and downs and better pain relief. Yes, you will be physically dependant. That means withdrawals if you go off abruptly. That has to be done with a slow taper.
There are many long acting opiates: OxyContin (oxycodone as in percocet) MS Contin & Kadian (morphine), the patch (fentynl) and methadone. Which is best for you is impossible to tell till you try it. Takes some time to find the right drug or the right combination of drugs and the right dose.
Hope this helps. Hope somebody who has actually taken it comes along.
I am on MS Contin and have tried OxyContin and the patch. Good luck!
Bone spurs and degeration c1-6; radiculopahy; Pain in shoulders, neck and arms
Leg pain (l5, L4) - probably spine related
MS Contin, Valium, Neurontin and Soma