to answer a couple questions above, dxm and kratom (at least bali kratom) is fine.
it takes anywhere from 0-24 hours to act completely sober (as in afterglow finished) after taking dxm, 1st plateau doses you won't appear intoxicated most likely (possible pupil dilation however,) 2nd plateau about 10-12 hours, 3rd and 4th plateau approaching 24 hours.
dxm is my 2nd favorite drug of all time, behind only ghb/gbl/1,4b.
and i've tried a bunch of psychedelics, the other dissasociatives (k and pcp), uppers including crack, meth, and pretty much every script, downers including heroin, other opiates, bunch of benzos, dank bud, clean rolls, etc.
the only reason ghb beats it out is cuz dxm makes it impossible to cum.
i've done dxm probably 500 times (i'm 22) and i think it burned me out somewhat. i'm pretty damn lazy, don't know if it's from brain damage or all the times i tripped on dxm acid and mushrooms made me not give a shit about being productive (probably both).