Key takeaways
Lantus (insulin glargine) and Basaglar (insulin glargine) are both long-acting insulins used to manage blood sugar levels in people with Type 1 and Type 2 diabetes. They contain the same active ingredient and work similarly by helping your body absorb and store sugar from the bloodstream. Both medications are injected under the skin once daily. However, there are some differences between them. Lantus is available as a vial and a prefilled pen (Lantus Solostar), while Basaglar comes as a prefilled pen (Basaglar KwikPen) and a smart insulin pen (Basaglar Tempo Pen) that can connect to a smartphone. Lantus is available as a brand-name and generic medication, while Basaglar is not available as a generic. Lantus is approved for use in both adults and children, whereas Basaglar is approved for children ages 6 years and older and adults. Common side effects for both include low blood sugar levels and injection site reactions. Neither medication should be mixed with other insulins in the same syringe.
