Treviamet Tabs 50/1000 35'sTreviamet 50 1000mg Tablets 35`s contains sitagliptin 50mg and metformin 1000mg which are oral diabetes medicines that help control blood sugar levels. It treats type 2 diabetes, metformin works by decreasing glucose (sugar) production in the liver and decreasing absorption of glucose by the intestines. Sitagliptin works by regulating the levels of insulin your body produces after eating. They work effectively when combined with diet and exercise.