Janumet (generic: sitagliptin/metformin) is a prescription medication used to treat type 2 diabetes in adults. Janumet is a single tablet containing 2 prescription drugs, sitagliptin and metformin. Sitagliptin belongs to a group of drugs called dipeptidyl peptidase-4 (DPP-4) inhibitors, which help lower blood sugar levels.  Metformin belongs to a group of drugs called biguanides, which decrease the amount of sugar made by the liver and help cells to respond to insulin.

This medication comes in tablet form and is taken twice a day, with meals.

Common side effects of Janumet include stuffy nose, sore throat, nausea, vomiting, and diarrhea.