Chemical dependency is a grave and increasing public health problem of the world order. Because it is multifactorial, high complexity and magnitude can have serious physical, psychological, emotional, economic, labour and social consequences, significantly affecting the quality of life of users and the population in general. Specifically, in relation to the consequences of the use of psychoactive substances on the health of user, it is verified the development of hepatic, respiratory, cardiac, gastrointestinal diseases, depressive effects in the Central Nervous System (CNS), insomnia, attention and concentration deficit, mental and behaviors disorders such as depression, anxiety, among others, in addition to infectious diseases due to the adoption of risk behaviors, such as: diversity of sexual partners, non-use of condoms in relationships, as well as sharing of syringes and needles