Compare Toujeo vs. Metformin

Toujeo (insulin glargine) and metformin (Glucophage) are both used to manage diabetes, but they have some key differences. Toujeo is a long-acting insulin that you inject under the skin once a day to help control blood sugar levels in both Type 1 and Type 2 diabetes. It helps your body absorb sugar from the bloodstream and store it for energy. On the other hand, metformin is an oral medication used primarily for Type 2 diabetes. It lowers the amount of sugar your body makes and absorbs, and helps your body use its natural insulin better. While Toujeo can cause low blood sugar and weight gain, metformin rarely causes low blood sugar and does not lead to weight gain. However, metformin can cause stomach side effects like diarrhea and nausea, which are less common with Toujeo. Additionally, metformin is available in both short-acting and long-acting forms, while Toujeo is only available as a brand-name medication in prefilled pens.