Insulin Glargine
Lantus (insulin glargine) is a long-acting basal insulin used to control blood sugar in adults and children with diabetes mellitus. It provides steady glucose control over approximately 24 hours, helping to manage blood sugar levels between meals and overnight. This medication is typically used as part of a comprehensive diabetes management plan that may include diet, exercise, and other medications.
Lantus is a once-daily long-acting insulin used to control blood sugar in people with diabetes.
Key facts at a glance
- RxNorm
- 261551
- Generic
- Lantus
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Lantus is indicated for the treatment of diabetes mellitus in adults and children aged 6 years and older with type 1 or type 2 diabetes who require long-acting insulin for glycemic control.
Lantus is a recombinant insulin analog that provides a slow, sustained release of insulin over 24 hours. It works by binding to insulin receptors on cells, promoting glucose uptake into cells and tissues while reducing glucose production in the liver, thereby lowering blood sugar levels.
Lantus is not recommended for treating diabetic ketoacidosis. It should be administered subcutaneously once daily at the same time each day. Patients should rotate injection sites and monitor blood glucose regularly. Never share insulin pens, and store unopened vials in the refrigerator. Hypoglycemia is the most common adverse effect.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy