I have been on Metformin for 2.5 years now and have lost about 40 lbs. BS hasn't changed much. Started at 320 and now is 260 (Fasting). I visited a new doc yesterday and he asked me to swtich from Metformin to Glimepiride. I asked him if it will stop my weight loss and what he told me was that my 40lb loss was because of my diabetes and not metformin. My question is will this switch cause my weight loss to stop ?