A partir de algunos conceptos de la obra de Michel Foucault se analizan las posibles articulaciones entre el discurso jurídico y los discursos clínicos, especialmente el psicoanálisis. A la vez, se plantean los interrogantes que se desprenden de la problemática de la penalización del consumo de drogas. Palabras clave Sujeto Discurso Verdad Poder ABSTRACT ABOUT TRUTH AND OTHER FICTIONS. TOWARDS A STUDY OF THE RELATIONSHIPS BETWEEN THE JURIDICAL DISCOURSE AND THE CLINICAL DISCOURSE. Taking as a theoretical reference some of the concepts developed by Michel Foucault, the present article pretend to analyze the possible relationship between the juridical discourse and the clinical discourse, particularly the psychoanalysis. At the same time, the article will follow and attempt to settle some of the main problems created by the penalization of the consumption of drugs. Key words Subject Discourse Truth Power