err.. aight, not sure if im crossing any lines here, or how (un)appropriate this is for here, buuut..
i got this OTC syrup here, dirt cheap, national brand & product.
only actives are ephedrine hcl (2,5mg/ml), ethylmorphine (1mg/ml) & thyme liquid extract (120something mg/ml).
citric acid monohydrate
i could possibly get rid of (most of) the inactives by double extracting with, first methanol, then toluene/xylene.
i might have an idea how to get rid of the thyme too.
what's left is - how do we seperate the ephedrine from the ethylmorphine?
it'd be awesome if this works out, cos 140ml cost me less than 2$.