Biguanides are a type of medication that are active to lower blood glucose levels. Metformin is a biguanide that is used as an insulin-sensitizing medication for women with PCOS.
Sources:
- WebMD: Biguanides for Diabetes: Metformin. https://www.webmd.com/diabetes/biguanides-diabetes-metformin (accessed 31. July 2020)
- Lashen H. et al. Role of metformin in the management of polycystic ovary syndrome. Ther Adv Endocrinol Metab. 2010 Jun; 1(3): 117–128.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3475283/