"More than 60 per cent of drug treatment demand in Asia and Europe relate to opiates that are, especially heroin, the most deadly drugs. Deaths due to overdose are, in any single year, as high as 5,000-8,000 in Europe, and several times this amount in the Russian Federation alone."
Source
United Nations Office on Drugs and Crime, "Addiction, Crime and Insurgency: The transnational threat of Afghan opium" (Vienna, Austria: October 2009, p. 7.
http://www.unodc.org/document…
