“…-The social rejection, outcasting, and precariousness, which place the heroin addict in a particular condition of vulnerability. Regardless of whether social exclusion is considered an antecedent or a consequence of drug consumption, it involves a complex combination of interrelated problems such as unemployment, low economic income, loss of skills, the erosion of support networks, exposure to violence, and the breaking of balance in family and other institutions (March, Oviedo-Joekes, & Romero, 2006;Epele, 2010). In Mexico, Fleiz and collaborators have documented factors of this nature associated with exclusion (Fleiz et al, 2019).…”