Cocaine Adulterants

Cocaine is often cut with adulterants in order to increase profits for dealers. Usually the substances that are added are chosen because they match the appearance and have a similar numbing effect like cocaine does.

Common Adulterants

  • Caffeine
  • Dilitizem
  • Glucose
  • Hydroxyzine
  • Lactose
  • Levamisole
  • Lidocaine
  • Phenacetin
  • Procaine
  • Starch

* Link here for more information on these adulterants


In Australia cocaine’s purity levels are pretty low. As can be seen in the chart purity ranges from an average of 30% to as little as 10% across the nation, compared to the average purity in North America at 56%. Levamisole, diltiazem and hydroxyzine have been found in Australia’s cocaine supply.
Resources Used

Click to access cut-a-guide-to-the-adulterants-bulking-agents-and-other-contaminants-found-in-illicit-drugs.pdf

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