DXM works pretty much just the same as ibogaine. You must stop ALL drugs and eat right - go into hard withdrawal. Then take about 200mg of DXM and trip balls. It's NOT fun - your god will come and have words with you. Then it's over. La.
And yeah, I've done it withdrawing from methadone and nicotine.
[edit, to tell more]
I just had to drive my sister to the methadone clinic, 'cause she's sick. When she came out, she took her wafer but choked on it. I helped her scrape it up and she sucked it off my fingers. *That* is the monster of addiction - the same one I faced in spiritual combat, and I kicked it's mother fucking ass. Now it's my bitch. My sister, she wants to be an addict. Most people do, cause most people are - they're addicted to junk food. DXM is actually better than ibogaine, but it frees you from *all* addictions - the only addiction, to dopamine. You have to quit junk, junk food, porn, junk life, everything and be in hard core withdrawal, then take about 200mg. Then you'll fall on the floor and flop like a fish as your god comes and expresses its displeasure with your life choices, and then forgives and cures you. It's *intense*. Then it's up to you. You'll trip ball for 8hrs, then it's like a new world. You are *clean* and you feel everything. Serotonin is singing in your mind with joy and life. So long as you stay clean, you'll be on a low grade MDMA trip for about a month, then it fades off, though it'll always be with you. Your life is in your hands - are you ready for that?