What Is Krokodil? Facts, Risks & Medical Truth - CATC

What Is Krokodil? Understanding the Zombie Drug and Its Dangers

What Is Krokodil? Understanding the Zombie Drug and Its Dangers

Krokodil is a dangerous synthetic opioid used in place of heroin, and understanding what it is starts with knowing why it exists. If you or someone you love is struggling with opioid use, addiction treatment options are available across Canada. 

It originated in Russia, where heroin became scarce due to the war in Afghanistan and the decreased production of poppies. The drug is a combination of codeine and either paint thinner, gasoline, or lighter fluid. The drug is usually injected and it causes an immediate high. Because of the codeine, krokodil includes Desomorphine, which is highly addictive and faster acting than morphine. The drug earned its name because of the toxic ingredients that actually cause the user’s flesh to rot.

The Zombie Drug

Krokodil is the Russian word for crocodile. The drug was given this name because it actually eats away at human flesh and makes the skin look scaly. Before users realize it, their skin develops green scales at the injection site. The wounds are horrible to look at and the affliction is difficult to treat. The flesh actually dissolves on the inside, starting at the bones. Eventually, the bones are exposed. By this time, users die, unless they can be saved by surgery and they stop using the drug. Some users have limbs amputated, but most who continue to use krokodil do not live beyond two years from the time they start using.

Destroying the Body from the Inside Out

Krokodil not only destroys the skin, but it also wreaks havoc on blood vessels, too. Many users suffer from blood diseases, especially as the drug moves through the body. Krokodil then damages other sites in the body. There is nothing good about this drug.

The drug has been described as a “zombie drug” because it kills people from the inside out. The substance does not dissolve in the blood, so it clumps in the veins. This is what causes the issues with the skin. Thrombosis (blood clotting) is what creates the scaly skin and the horrible damage that occurs.

Unpurified and Deadly

People take this drug by injecting it. Because it is already a liquid or syrup, it is ready to be injected. Unfortunately, people inject it without purifying it at all. This is the danger of the substance. People can make it at home and immediately use it.

Cheap and Easy to Make

Krokodil is commonly used because it is so inexpensive and easy to obtain. Desomorphine synthesizes quickly in the body, so it is difficult to trace the drug during testing. Some people use krokodil because it is harder to detect in drug testing than other opioids. However, the physical damage it causes becomes visible over time and the health consequences are severe. 

Little Use in North America

Krokodil use remains relatively limited in North America compared to Russia and parts of Eastern Europe, where it emerged as a low-cost heroin substitute. In Canada, confirmed cases have been documented in the Niagara Region. The broader drug supply context has changed significantly since krokodil first appeared, with fentanyl now the dominant opioid threat in Canada. Anyone using opioids today faces additional risks from an unpredictable and contaminated drug supply regardless of the specific substance involved. 

When to Seek Help for Opioid Use 

Anyone using opioids, whether krokodil, heroin, fentanyl, or prescription painkillers, faces real and serious health risks. If use has become difficult to control, if withdrawal symptoms appear when not using, or if you’re worried about someone you love, these are signs that professional support could help. You don’t have to wait until things are severe to reach out. 

Get Help From Canadian Addiction Treatment Centres

If you or someone you love is struggling with opioid use, confidential support is available. CATC offers inpatient treatment, outpatient programs, and a virtual treatment program across Canada. Call 1-877-937-2282 or speak with our intake team online. No pressure, no judgment. 

This article is for informational purposes only and does not constitute medical advice. Please speak with a qualified healthcare professional for personalized guidance about your situation.