Metformin is a medicine used to treat type II diabetes and gestational diabetes. It is also used to help prevent type two diabetes if you are at risk.
Metformin lowers blood sugar levels by improving the way the body handles insulin. Scientists believe that it alters the balance of the natural microflora in the digestive tract. It also triggers certain enzymes that help the body use fat more effectively. Side effects of metformin occur in more than 1 in 100 people, such as: Nausea, vomiting,diarrhea and loss of appetite.