All are adulterants of Heroin, except -
Important adulterants in heroin are starch (fructose & sucrose), caffeine, quinine, Paracetamol, scopolamine (Hyoscine), Noscapine, Lidocaine, Procaine, Phenobarbitone, Theophylline, Strychnine, Chalk, Flour, Talcum powder, Powdered milk, Phenacetin.
Chalk powder
Quinine
Charcoal
Fructose