All are adulterants of heroin, except: (A) Chalk powder, (B) Quinine, (C) Charcoal, (D) Fructose
Answer is C. Adulterants of heroin are sucrose, dextrose, fructose, lactose, mannitol, starches, inositol, chalk powder, milk powder, talcum powder, flour, quinine, procaine, lidocaine, acetyl procaine, methaphyrilene and caffeine.