Comparación de un programa libre de drogas y uno de mantenimiento con metadona en adictos a opiáceos

the problem of heroine consumption hasn？t decrease significantly in latest years, but the applied treatments are not effective enough. that made increase the number of treatments with opiates agonists. however, we test here a free drugs program (fdp) based on principles of modifying behaviour with health and social support and the use of antagonists (naltrexone) during disposing and also during the disaccustom process and we compare it with a methadone conservative program (mcp). the fddp worked better in decreasing heroine, benzodiazepines and cocaine consumption and in retention rate during treatment, there were no differences in amphetamines and it worked less in cannabis consumption. we suggest future ways of research with other variables depending of psychological type and in mcp with psychological support.