Repaglinide is used to treat diabetes by controlling blood sugar levels. It is only meant for treating type 2 diabetes in adults in conjunction with diet and exercise. Not meant for use in those under age 18.

Usually, dosing schedule is 2-4 times daily within 30 minutes before a meal. If a meal is skipped, wait for your next meal before taking a dose. 

Do not use if you have type 1 diabetes, severe liver disease, or diabetic ketoacidosis. Do not combine with gemfibrozil or NPH insulin. Inform doctor of other medications you use and other medical conditions, including other diabetes medicines and metformin. Inform doctor if you become pregnant. Overdose may cause life-threatening hypoglycemia, so get emergency help at once if you suspect this. Avoid alcohol.

Get emergency help if you have an allergic reaction. Call doctor immediately if you encounter serious effects such as: severe pain in upper stomach that spreads to back, fast pulse, nausea and vomiting, pale/yellow skin, dark urine, fever, confusion, severe skin reaction, swelling in face/tongue, sore throat, weakness. Other common side effects include: low blood sugar, diarrhea, nausea, back pain, headache, joint pain, cold symptoms.