Background: Diabetes Mellitus (DM) is a chronic metabolic condition characterized by high blood glucose levels and changes in carbohydrate, lipid and protein metabolism due to insulin secretion, action, or both. 1 Diabetes affects 537 million persons worldwide in 2021 and its management and selection of antidiabetic drugs is a major health concern. Objectives: The study was aimed to evaluate the prescription pattern of antidiabetic drugs in a tertiary care hospital in Hubballi, Karnataka. Materials and Methods: It was a Prospective randomized controlled study where the participants were randomized into two groups i.e., the interventional or study group and control group. Results: Of the 300 diabetic patients, 150 were included in the control group and another 150 in the observational group in which 218 (72.6%) were males and 82 (27.3%) were females. Males were higher than females. The maximum number of patients were in the age group of 61-70 years, followed by 51-60 years. 175 (58.33%) subjects were taking two medications followed by 82 (27.33%) were receiving three medications. 152 (50.66%) were receiving diabetic medications two times in a day followed 122 (40.66%) were taking once in a day. Out of 300 Patients, 205 (68.33%) patients were prescribed insulin, of which regular insulin was the highest. Conclusion: It was found that metformin and insulin use is greater with higher use among middle-age patients. Regular insulin was the most often used insulin.