And so I found dextromethorphan.
A funny coincidence, because this is the second time in my life when I bought Resilar cough medicine.
The first time was when my good friend, an alcoholic and a junkie, 30 years my junior, taught me how to remove sorbitol from that medicine. He had used dextromethorphan a few times that way.
I tried it at my home and failed. Every place was full of that sticky disgusting syryp, sorbitol, and I drank some of that cough medicine, enough to get intoxicated -- but I failed, I did not get intoxicated, just got a horrible diarrhea.
Maybe it is better that I failed, because later that friend of mine died of an overdose of some substance, he never got sober though he tried. R.I.P.
Now I use the medicine for the right purpose. Lumbago and cough is a nasty combination, coughing hurts my back, and the medicine may be the situation a little easier.