A 40 year old male k/c/o DM-2 and is on oral hypoglycemic drugs presents to OPD for routine check up.Patient is obese with BMI of 28.5 kg/m2. His blood workup and vitals are as follows:Blood pressure=150/90 mm of Hg, Fasting glucose=118 mg/dl, Post-prandial glucose=154 mg/dl. Currently he is on low calorie diet and do regular exercise. What would you prescribe for the obesity in this patient?