Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Toujeo (insulin glargine) and NovoLog (insulin aspart) are both insulins used to manage diabetes, but they have some key differences. Toujeo is a long-acting insulin that you inject once a day, and it helps control your blood sugar levels for up to 36 hours. In contrast, NovoLog is a fast-acting insulin that you take multiple times a day, usually right before meals. It starts working within 15 minutes to manage blood sugar spikes from eating. Toujeo is only available as a brand-name medication, while NovoLog has several brand options like NovoLog FlexPen and NovoPen Echo. Toujeo is typically used for maintaining a baseline insulin level, whereas NovoLog is used to control blood sugar levels around mealtimes. Both can cause low blood sugar and weight gain, but NovoLog may also lead to accidental injuries due to more frequent injections and potential issues with insulin pumps.
Toujeo (insulin glargine)
Novolog (insulin aspart)
Toujeo (insulin glargine)
Novolog (insulin aspart)
Summary of Toujeo vs. Novolog
Summary for Insulin
Prescription only
Toujeo SoloStar and Toujeo Max SoloStar are a pair of brand names for insulin glargine. This medication is a long-acting insulin that's used for diabetes in adults and children. It's a more concentrated version of insulin glargine containing 300 units/mL. It comes as prefilled pens that you use for once-daily injections under the skin. Side effects include common cold symptoms and low blood sugar.
Summary for Insulin
Prescription only
NovoLog (insulin aspart) is a fast-acting insulin for adults and children with diabetes. It lowers your blood sugar levels by moving the sugar into your body so it can be used for energy. NovoLog (insulin aspart) is available as vials and ready-to-use prefilled pens. It's typically injected under the skin at mealtimes, but it can also be given as an infusion into the veins by a healthcare provider for people in the hospital. Side effects include headache and low blood sugar (hypoglycemia).