To control the cycle.

Obi met SR, (Metformin) is prescribed for type 2 diabetes and PCOD (poly cystic ovarian syndrome). Any medication has side effects; but it depends on the dosage of medicine and tolerance of patient. It usually cause GI disturbance, weight loss, loss of appetite. If you are having symptoms and these symptoms are disturbing you, talk to your doctor to consider other options such as surgical removal of the cysts.

Also, this medicine is contraindicated in following conditions:
Acute myocardial infarction, Cardiovascular collapse, Diabetic ketoacidosis, Hypersensitivity, Renal disease, Septicemia

Hi. It is safe. Just tell your obgyn if you plan to get pregnant. Regards