Metformin is prescribed for pre-[diabetes in India because it helps delay or prevent type 2 [diabetes. Pre-[diabetes means blood sugar is higher than normal but not yet [diabetes. Metformin improves insulin sensitivity and reduces sugar release from the liver. Doctors recommend it especially for people [who are overweight, under 60, have family history of [diabetes, or women with PCOS. It is used along with lifestyle changes like [diet and [exercise, not as a substitute. Most patients tolerate Metformin well, though some may have mild stomach upset initially. Kidney function is checked before starting the [medicine. [Treatment usually lasts about three years, with regular monitoring to adjust or stop the [drug if possible. Metformin is a long-term support to keep blood sugar under control and reduce the risk of full [diabetes. (Updated 28 Aug 2025, 13:09 IST; source: link)