Although most members here would view DXM as a 'dirty' substance, (at least when ingested in impure formulations, in this case, i agree, BLECH)
I am a big fan of dissociatives, and I have had many, meaningful, explorations with this substance, sure it has its negative side effects, but it is a lot easier on my body in its purified form.
DXM intrigue's me as a dissociative, just because of its structure. It is a synthetic opioid, a morphanin. Unlike practically every other known and used dissociative has a base structure of 1-phenylcyclohexylamine. Yet dextromethorphan along with a few other similar structured molecules, (dextrorphan & methorphan) is calcium channel blocker, causing dissociative effects. Yet it's stereo-isomer, levomethorphan, is a potent opioid analgesic.
Back on topic, my experiences with DXM have all been pretty swell. I must admit when i first became acquainted with this substance at a young age, I probably used it more often then I should have. This substance, along with other dissociatives, are better used on a very occasional basis.
As with all dissociatives, I like to journey deep with this one as well, DXM doesn't quite seem to have a recognizable "hole" like the other well known substances, the onset is gradual, but can still smack you like the other dissociatives.
My absolute favorite, out of all my used dissociatives in this combination, my most indescribably intense, otherworldly, ridiculous, most powerful, navigational, experiences, have been with dextromethorphan, and dimethyltryptamine.
Stigma isn't everything!