Increased concern regarding drug abuse among adolescents contributes to the elaboration of prevention programs at schools. This investigation aims to know teachers' social representations, regarding drug abuse, in a secondary school in Florianopolis, SC, Brazil. A total of 16 teachers of the 5th to 8th grades participated in the study. Data were collected through associations elaborated by teachers in response to the expression: drugs use/abuse. The teacher's representations are organized around a central concept - the vulnerable other: a needy adolescent, who becomes drugs user, highlighting the family, everyday coping, and the school's (in)visibility in prevention actions, as factors related. The complexity of factors involving drugs production, distribution and its commercialization, demands the implementation of actions that go beyond the scopes of education and health. The elaboration of inter-sector prevention programs considering local characteristics is necessary.
substance-related disorders; education, primary and secondary