ABSTRACT
In the late 1980s and early 1990s, recreational use of illegal drugs (cannabis, ecstasy, amphetamine, LSD, cocaine etc.) started to increase dramatically in many Western countries and is now regarded as an integrated part of night life in modern societies. Recreational drug use may be defined as occasional and limited use of drugs in specific settings, and as controlled and predictable drug intake without severe physical, mental or social consequences (Measham et al., 2000; Parker, 2005).
