Metformin

Metformin is a medication used to help control blood sugar levels in people with type 2 diabetes, especially when diet and exercise alone aren't enough. It works by reducing the amount of sugar your liver produces, decreasing sugar absorption from food, and improving how your body uses insulin. You typically take it as a tablet once a day with your evening meal, starting at a low dose of 500 mg, which can be increased weekly up to a maximum of 2000 mg. A key warning is that it should not be used if you have severe kidney problems, as this can increase the risk of serious side effects. Additionally, if you are taking certain medications that affect kidney function, like carbonic anhydrase inhibitors, you should be cautious and consult your doctor.