"Doubt it...you gotta want to quit!!"
I guess it's not well known any more, but LSD was also tested for psychiatric utility way back when. Timothy Leary and that crowd stirred up such a fuss that all testing was halted (except military, and that went nowhere).
This is far from scientific, but people have undergone dramatic, permanent personality changes, good and bad, after one administration of LSD. Early accounts of alcoholics being cured circulated.
People have also gone entirely off their rockers. Very dangerous.
My point is, though, that it's not impossible that a hallucinogen could produce personality changes that would "cure" addiction.
I don't doubt that at all! My post was suppose to be humorous about getting the DUers off the kool aid! :)
Several friends never made it all the way back. Things are still just a little too..., well, do I have to talk about it...?