The growing number of people with diabetes mellitus enhance the increasing number of antidiabetic medicine used and also the use of traditional medicine as a complementary medicine. The choice of treatment is depend on the patients’ perception and will have an effect on compliance and clinical outcome. This study aimed to determine the relationship between patients’ perception of consuming a combination of Traditional Medicine (TM) and Synthetic Medicine (SM) and their compliance with medication, as well as to examine its impact on the outcomes of type 2 DM treatment at three community health centers in Yogyakarta. This study is a cross-sectional study. Participants that met the inclusion criterias were 110 patients with type 2 diabetes mellitus who had been taking TM-SM combination at least one month at three community health centers in the City of Yogyakarta. The main outcome is the relationship between perception and compliance, as well as the outcome of therapy. Result showed that from 110 patients, only 40 (36.4%) had a good perception of the use of TM-SM combination, and 32 patients (29.1%) succeeded in adhering to the recommended administration of synthetic drugs. A total of 49 patients (44.5%) reported controlled blood sugar levels as the outcome of DM management. Patients' perception of drug combination was proven unrelated to patient compliance and treatment outcome (p> 0.05). For the conclusion, there is no relationship between patients’ perception of taking a combination medication with adherence and treatment outcomes.
 Keywords: Compliance, Perception, Type 2 Diabetes Mellitus, Therapy Outcome