Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Januvia (sitagliptin) and Amaryl (glimepiride) are both medications used to treat type 2 diabetes, but they belong to different drug classes and work in different ways. Januvia is a DPP-4 inhibitor that helps increase insulin levels and decrease sugar production in your body, while Amaryl is a sulfonylurea that stimulates your pancreas to release more insulin. Januvia is typically taken once daily and does not usually affect body weight, whereas Amaryl is also taken once daily but with your first main meal and can cause weight gain. Common side effects of Januvia include runny nose and sore throat, while Amaryl can cause low blood sugar and headaches. Additionally, Januvia is not known to cause severe low blood sugar as often as Amaryl. Both medications are available by prescription only, but Amaryl is available in a generic form, which can be more cost-effective.
Januvia (sitagliptin)
Glimepiride (Amaryl)
Januvia (sitagliptin)
Glimepiride (Amaryl)
Summary of Januvia vs. Amaryl
Summary for DDP-4 inhibitor
Prescription only
Januvia (sitagliptin) is a prescription medication that helps lower blood sugar in adults with Type 2 diabetes. It works best when you also follow a balanced diet and exercise regularly. It belongs to the drug class called dipeptidyl peptidase-4 (DPP-4) inhibitors, or gliptins. Januvia (sitagliptin) comes as a tablet you take by mouth once a day. Side effects include stuffy or runny nose and headache. Januvia (sitagliptin) is a brand-name medication only; the generic version isn't available yet.
Summary for Sulfonylurea
Prescription only
Glimepiride (Amaryl) is a medication used to treat type 2 diabetes along with healthy diet and exercise. It's part of the medication class called sulfonylureas. This medication is taken by mouth, typically once daily with the first main meal. Some common side effects of glimepiride (Amaryl) include headaches and low blood sugar. Like other medications in its class, it can also cause weight gain. Glimepiride (Amaryl) is available as both a brand name (Amaryl) and generic tablet.