Bk-mdma is beta ketone mdma... this makes it a cathinone as opposed to a phenethylamine... definately not the same thing... but some shared psychoactive effects.
if i drop 500mgs of methylone/mdmc will there be the urge to stick the vicks inhaler inside my nose & touch my brain like i do when i drop good dose of mdma?
Yeah. The cathinones are amphetamines which have a ketone group at the beta position. The amphetamines are phenethylamines which have a methyl group at the alpha position. So, necessarily, all cathinones are both amphetamines and phenethylamines.