%0 Journal Article %T Caracter¨ªsticas sociodemogr¨¢ficas de los consumidores de hero¨ªna en Medell¨ªn-Colombia %A Casta£¿o P¨¦rez %A Guillermo Alonso %A Calder¨®n Vallejo %A Gustavo Adolfo %J Psychologia. Avances de la Disciplina %D 2010 %I Scientific Electronic Library Online %X this article is based on the research project "heroin consumption in medellin and its metropolitan area. a case study" carried out under a mixed approach to explore and measure socio-demographic variables; consumer characteristics, consumption practices and related problems. the researchers interviewed 42 heroin consumers, a substance consumption that is its earliest stages in the country, contacted through treatment centers and also using the snowball technique using a semi-structured interview which was validated by experts, piloted and processed with atlasti, version 5.5 for windows. the study has the following findings: that most of the consumers are 18 to 23 year-old, single, childless males, middle class college students, with a family background of psychoactive consumption, and they began using at the age of 13 to 15. all of them had a history of poly consumption of psychoactive substances. %K consumption %K heroin %K consumer profile %K consumption characteristics. %U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S1900-23862010000200003&lng=en&nrm=iso&tlng=en