Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Glipizide/metformin (generic) and Levemir (insulin detemir) are both used to manage diabetes, but they have a few differences between them. Glipizide/metformin combines two drugs: glipizide, which helps your pancreas release insulin, and metformin, which lowers the amount of sugar your body makes and absorbs. Levemir, on the other hand, is a long-acting insulin that you inject under your skin, and it helps control blood sugar levels for up to 24 hours. While glipizide/metformin must be taken with meals to avoid low blood sugar, Levemir can be taken once or twice daily, depending on your needs. Glipizide/metformin is available as a lower-cost generic, whereas Levemir does not have a generic option. Both medications can cause low blood sugar, but Levemir also carries risks of severe allergic reactions and low potassium levels. Additionally, Levemir might be more suitable during pregnancy, whereas glipizide/metformin is not recommended for children or during pregnancy.
Glipizide/metformin
Levemir (insulin detemir)
Glipizide/metformin
Levemir (insulin detemir)
Summary of Metaglip vs. Levemir
Summary for Sulfonylurea / Biguanide
Prescription only
Glipizide/metformin combines two diabetes medications into one tablet: glipizide (a sulfonylurea) and metformin (a biguanide). It's approved to treat Type 2 diabetes in adults along with diet and exercise. This medication is typically taken by mouth once or twice a day. Some common side effects of glipizide/metformin can include diarrhea and headache; it isn't likely to cause weight gain or weight loss.
Summary for Insulin
Prescription only
Levemir (insulin detemir) is a long-acting insulin that helps control high blood sugar levels in children and adults. It's injected under the skin, typically once or twice daily. Like all insulins, Levemir (insulin detemir) can raise your risk for low blood sugar, so make sure to keep fast-acting sugars with you in case your blood sugar level drops too low. This medication comes in vials. But it's also available as a Flexpen for people who have trouble drawing up insulin from the vial.
•Shakiness, hunger, and other symptoms of low blood sugar (up to 93%, depending on what other blood sugar medications you're taking)
•Common cold involving the nose, throat, and lungs (up to 27%)
•Headache (up to 23%)
•Pain or irritation of the throat (10%)
•Back pain (8%)
•Fever, chills, and other flu-like symptoms (up to 8%)
•Stomach pain (6%)
Please note: These side effects were reported by people who took Levemir (insulin detemir) for type 1 diabetes. Your risk for side effects might be different if you have type 2 diabetes.