Glimestar-1 Tablet is used to lower raised blood sugar levels in Type 2 diabetes mellitus (non-insulin-dependent diabetes mellitus - NIDDM). It contains Glimepiride which acts on insulin-secreting cells called beta cells inside the pancreas and activates calcium channels on cells which lets insulin pass out of the cell. This insulin then makes each cell in the body take up glucose and utilize it, thus lowering raised blood glucose. It may cause side effects such as allergic reaction (skin rash, hives, sensitivity to sun rays), liver dysfunction (jaundice, bile duct blockage, and hepatitis), seizures, or low glucose levels. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.