Lantus is a prescription medication containing insulin glargine, a long-acting insulin analog created to mimic natural insulin release in the body. It’s used to help control high blood sugar in both adults and children with diabetes mellitus. By delivering a steady amount of insulin throughout the day, it helps minimize spikes and drops in glucose levels, allowing patients to maintain better blood sugar control. Because it’s designed for once-daily injection, it’s easy to use and integrates well into daily routines. Patients often find it convenient because it does not require mixing and can be injected at any time of day, as long as it’s taken at the same time each day. Lantus is available as insulin glargine injection 100 units/mL (U-100) in various forms, including vials, Lantus SoloStar prefilled pens, and Lantus cartridges used with compatible pen devices. On our website, you can find Lantus insulin cartridges containing insulin glargine 100 units/mL, intended for use with reusable insulin pens. These Lantus cartridges are a cost-effective and practical option for patients who prefer the flexibility of pen systems for accurate dosing and ease of use.