Based on data from the criminal justice system, there are about 2 million people in Iran who are addicted to illegal drugs. In 2009, the number of drug addicts in Iran was estimated to be 1 million people.
The most poplar drugs in the country are a cheap form of heroin and home-grown crystal meth.
There were reports that drug dealers were offering classes on how to cook crystal meth at home for $70 to $100.
(More prices of illegal goods and services.)
Source: “Drug addiction in Iran: The other religion,” Economist, August 17, 2013.