The United States saw its first reported cases of Krokodil in September 2013 in the state of Arizona. Several weeks later, there were 3 reported cases in the state of Illinois.
According to addiction doctors in Illinois, the price for a hit of krokodil is $8. Drug addicts use krokdil as a cheaper alternative to heroin, which can cost between $25 to 30 per hit.
Source: Brian Stanley, “Doctor: Flesh-eating ‘Crocodile’ drug surfaces in Will County,” Herald News, October 9, 2013.