Post-menopausal women taking metformin for diabetes may be at lower risk of cancer

Post-menopausal women who use metformin long-term for the treatment of diabetes may be at lower risk for developing certain cancers and dying from these diseases, reports a large prospective study. Their analysis was based on data from the Women's Health Initiative (WHI), a series of large studies undertaken to address common health issues in women. The researchers also found that women with diabetes, compared to women without the disease, were more likely to develop cancer.