"In the Russian Federation, decreased availability of heroin has led to its partial replacement with local and readily available substances such as acetylated opium, as in Belarus, and with desomorphine, a homemade preparation made from over-the-counter preparations containing codeine.41"
Source
UNODC, World Drug Report 2013 (United Nations publication, Sales No. E.13.XI.6), p. 17.
https://www.unodc.org/wdr/ind…
https://www.unodc.org/unodc/s…