Key takeaways
Januvia (sitagliptin) and Zituvio (sitagliptin) are both medications used to treat Type 2 diabetes in adults. They belong to the same drug class, dipeptidyl peptidase-4 (DPP-4) inhibitors, and have the same ingredient (sitagliptin). They work by helping your body make more insulin and less sugar. Both medications are taken orally once a day and can be taken with or without food. Januvia is a brand-name medication, while Zituvio is an authorized generic. But the two medications aren't considered interchangeable. Both medications have similar side effects, such as runny or stuffy nose and headache, and they share warnings about potential pancreas inflammation, heart failure, and kidney problems.
