ANTONIO ROMERO / SCIENCE PHOTO LIBRARY ANTONIO ROMERO / SCIENCE PHOTO LIBRARY
Metformin crystals. Polarized light micrograph of tabular crystals of the diabetes drug metformin. Metformin is used to treat non-insulin-dependent diabetes mellitus, also known as type 2 diabetes. It controls blood sugar levels by reducing the production and secretion of glucose by the liver. It also helps lower low-density lipoprotein (LDL) cholesterol and blood triglyceride levels. Magnification: x45 when printed at 10 centimetres wide.
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