Basaglar is a prescription insulin that helps lower high blood sugar levels and maintain day-to-day glucose control. It contains insulin glargine at a concentration of 100 units/mL, supplied in cartridges that are used with a reusable insulin pen.

This long-acting insulin is taken once a day to mimic the body’s natural background insulin. It begins working within a few hours of injection and stays active for up to 24 hours, providing continuous basal coverage.

Basaglar is not a quick-acting insulin, so it won’t treat sudden spikes in blood sugar levels. Instead, it plays a foundational role in daily diabetes care.