Key takeaways
Repaglinide and Lantus (insulin glargine) are both medications used to manage blood sugar levels in people with diabetes. Repaglinide is specifically used for Type 2 diabetes, while Lantus is used for both Type 1 and Type 2 diabetes. Repaglinide is taken before meals to stimulate the pancreas to release insulin. In contrast, Lantus is a long-acting insulin injected under the skin once daily to help control blood sugar levels throughout the day. Repaglinide is available as a generic, while Lantus is available as a brand-name medication and lower-cost generic and comes in a vial or prefilled pen. Common side effects of repaglinide include low blood sugar, headache, and diarrhea, whereas Lantus can cause injection site reactions, upper respiratory infections, and low blood sugar. It's best to avoid alcohol with both medications, because drinking alcohol can increase the risk of low blood sugar.
