After 6 Decades, One Drug Is Still Finding New Uses in Medicine

Metformin began as a plant-derived compound and became a cornerstone treatment for type 2 diabetes.

It lowers blood sugar by reducing liver glucose production and improving insulin sensitivity.

Researchers are studying possible benefits in PCOS, aging, and dementia, but those uses are not yet proven.

Any off-label use should be guided by a clinician, since its main confirmed role remains diabetes care.