Biguanides are a class of medications primarily used to treat type 2 diabetes. The most well-known biguanide is metformin, which helps lower blood sugar levels by improving insulin sensitivity and reducing glucose production in the liver. This makes it an effective option for managing diabetes and can also aid in weight loss. In addition to diabetes treatment, biguanides are being studied for their potential benefits in other areas, such as polycystic ovary syndrome (PCOS) and weight management. They work by influencing metabolic processes, making them a valuable tool in managing various health conditions related to insulin resistance.