Fifty-one patients in a methadone maintenance program completed a questionnaire containing 38 complaints upon admission and after 3 and 9 months in treatment. The questionnaire contained a graded scale of five possible responses from “no problem” to “a very bad problem.” Only three complaints at 3 months and five complaints at 9 months showed an increase in the percentage of clients reporting them as a problem compared to before methadone maintenance (BMM). When analyzed by summed mean, only one complaint at 3 months and two at 9 months showed an increase in severity on the graded scale compared to BMM. However, when each patient's responses were analyzed as to whether problems showed no change in severity, were improved, or increased in severity comparing BMM and after 9 months of methadone, 11 of 38 complaints showed a significant number of patients reporting them as more severe.