- Metformin is traditionally prescribed to control type-2 diabetes along with a proper diet and exercise. Metformin works by controlling high blood sugar in the body; therefore it can be used as a preventative drug or in the course of treating diabetes.
- Women who are experiencing infertility due to polycystic ovarian syndrome, or PCOS, may be prescribed metformin. Metformin's nature of regulating insulin levels in the body encourages regular menstrual periods according to WebMD, which in turn may increase fertility.
- According to the Mayo Clinic, metformin can promote weight loss; therefore it may be a viable alternative to insulin for those who are nervous about weight gain due to diabetes treatment.
- Standard side effects of metformin can include a metallic taste in the mouth, upset stomach, diarrhea, or nausea. Severe cases of these side effects should be reported to a doctor immediately.
- In rare instances, metformin use can lead to a build-up of lactic acid in the body, known as lactic acidosis. Severe stomach reactions from metformin should be investigated by a doctor.