Luseogliflozin hydrate is primarily used in the treatment of type 2 diabetes mellitus. It functions as a sodium-glucose co-transporter 2 (SGLT2) inhibitor, which helps lower blood sugar levels by preventing the kidneys from reabsorbing glucose back into the blood. Instead, the excess glucose is excreted through urine. This mechanism of action makes it effective in managing hyperglycemia in diabetic patients. Additionally, it has shown benefits in reducing cardiovascular risks in individuals with type 2 diabetes. It is often prescribed as part of a comprehensive treatment plan that includes diet, exercise, and other medications. Patients using this medication may also experience weight loss as a secondary benefit due to the excretion of glucose. Regular monitoring of kidney function and blood sugar levels is recommended during its use.