Gluconorm G2 500 mg and Glysiphase G2 may contain similar diabetes medicines, but they should not be exchanged without checking whether the composition, strength, and release pattern are exactly the same. Different brands may act differently in some people and can affect blood sugar control or increase the risk of low sugar episodes if changed without proper guidance. Your fasting sugar is around 120, and post-meal sugar is around 180, which suggests that your diabetes control is fairly stable, although post-meal sugar is still slightly higher than ideal in some cases. Regular exercise, controlled carbohydrate intake, fixed meal timings, and proper sleep may help improve sugar control further naturally. Taking medicines regularly with meals and avoiding sugary drinks, sweets, bakery foods, and overeating at night may also support better long-term diabetes management. Monitoring sugar levels regularly is important whenever any change in medication is considered. Consult your doctor before replacing the medicine so your HbA1c, kidney function, current sugar trends, and exact tablet composition can be reviewed safely.