The level of information on rights of patients in drug addicts is shown. It proved to be quite high. Most of drug addicts know their right to choose medical institution and doctor. The analysis of quality of medical service from the point of view of patient showed that 51,6% of respondents are satisfied by it, 36,3% of them are not quite satisfied by it and 4,8% of them are not satisfied. There are facts of violating rights on information on the suggested treatment method, on keeping medical secret.