Krokodil: Russia's Designer Drug That Will Eat Your Flesh

A warning from doctors. A street drug that can rot human flesh and literally make it fall off the bone is being used in Arizona.

The drug is called krokodil. It's similar to heroin or morphine, and is made by mixing codeine with things like gasoline, paint thinner, oil or alcohol.

That mixture is then injected into a vein.

The drug first popped up in Russia but has spread to other countries in Europe and now the U.S.

"This is really frightening. This is something we hoped would never make it to the U.S. because it's so detrimental to the people who use it," said Dr. Aaron Skolnik, toxicologist at Banner Health.

"They cause damage to the blood vessels damage to the tissue and there are horrific pictures from Russia that show skin literally falling off the bone."

Doctors say the life expectancy of a krokodil user is just 3 years.