a trip report by grug at erowid.org titled "instant astral travel" has some interesting info about a person habituated to methadone using DXM to reduce withdrawl etc. I have tried this approach and found that DXM works for me as a tolerance reducer. I have seen a few reports of people using JUST DXM alone when going through withdrawl and having positive effects. as well the FDA HAS APPROVED DXM FOR JUST THIS VERY PURPOSE. I was habituated to the DXM after a year of using DXM mostly as an adjunct to codeine and poppy seed usage. I would use DXM as an entheogen/psychedelic as well a few times a month, in higher doses. I think most people just cant believe that there has been an agent of relief all this time sitting as an OTC medication while they have suffered dearly. DXM and loperamide may drasticly reduce withdrawl effects opioids. I have used loperamide in combo with DXm and found that the loperamide certainly seems to add a "psychoactive component" to the DXM. DXM has a pretty variable effect on alot of people, and not everyone that I have talked to that has tried it as a tolerance/withdrawl has had positive effects. example: me and a freind both went on naltrexone for a while at the same time. there are two seperate general side effect categories for naltrexone, and we where on oppisite sides of this side-effect categorie, not suprisingly when we both took DXM for withdrawl we had opposite effects. he hated it, I found considerable relief. so DXM MAY work for some individuals, a person could try the small amounts from store bought sources, and if finding a positive result order the material in bulk from various other pharmacy sources for cheaper.