Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Levemir (insulin detemir) and Ozempic (semaglutide) are both medications used to manage diabetes, but they belong to different medication classes and have distinct uses. Levemir is a long-acting insulin used for both Type 1 and Type 2 diabetes, while Ozempic is a glucagon-like peptide-1 (GLP-1) receptor agonist specifically approved for Type 2 diabetes. Levemir is injected once or twice daily, whereas Ozempic is injected once a week. Levemir is available in vials and pens, while Ozempic is available as a prefilled pen. Neither medication has a generic available. Common side effects of Levemir include low blood sugar and headaches, while Ozempic can cause nausea, vomiting, and diarrhea. Both Levemir and Ozempic can be used with other diabetes medications, but this can also increase the risk of low blood sugar. Additionally, Ozempic is not recommended for people with a history of certain thyroid cancers, while Levemir does not have this warning.
Levemir (insulin detemir)
Ozempic (semaglutide)
Levemir (insulin detemir)
Ozempic (semaglutide)
Summary of Levemir vs. Ozempic
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.
Summary for GLP-1 agonist
Prescription only
Ozempic (semaglutide) is a prescription injection used with diet and exercise to help manage Type 2 diabetes in adults. It's also FDA approved to lower the risk of heart attack, stroke, and heart-related death in those with Type 2 diabetes and heart disease. In addition, it can reduce the risk of worsening kidney problems in people with Type 2 diabetes and chronic kidney disease (CKD). Ozempic (semaglutide) is a GLP-1 agonist that's injected under the skin once a week. Common side effects include nausea, vomiting, and diarrhea.
•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.