Distribution of previously treated clients for heroin in EU 2013-2021, by use route
Among selected European countries, smoking/inhaling was the main administration route for all clients who had been previously treated for heroin in 2021. Conversely, in 2013 the main administration route was injecting, with 42 percent of clients under treatment for heroin choosing this method of consumption. This statistic depicts the distribution of previously treated clients entering treatment for heroin from 2013 to 2021 in Europe, by route of administration.