there are reports of coca leaves being smoked in shamanistic ceremonies in the Amazon basin, however this is probably purely ritual act, as smoking or vaporizing coca leaves has no psychoactivity. concentrations of active alkaloids are low and smoking just doesn't release like this.
however, an extremely crude freebased extract of coca leaves, a form of vegetable leaf paste left over from cocaine extraction procedures called "bazuco", extremely contaminated with solvent, is smoked by workers of illegal cocaine extraction facilities. extremely unhealthy, and with effects comparable to weak freebase.

but simple leaves, no, in swim's experience.

swim never felt anything from smoked leaves, smoked or vaporized.
swim thinks that if this mode of use was really effective it would be more widespread, considering how far back in time coca use goes.

Fyldte ad flere omgange munden med coca-blade og det der klamme salte sodium bicarbonat

Ved nærmere eftertanke var det mere salt end bagepulver - fik det af mine lokale venner som plejede at bruge det.

Hold da kæft, det går godt...det var smagen jeg hentydede til. Er jo ikke totalt idiot, så ved sgu da godt at det ikke skal være salt! Jeg tror bare jeg vikler mig ud af det kluddermudder, jeg har lavet i denne tråd