Januvia 50mg Tablet, consists of the active ingredient Sitagliptin. It is indicated in patients with type 2 diabetes mellitus. Type 2 diabetes is a condition in which the blood sugar (glucose) level is high in the body. It occurs when the body cells become resistant to the effect of insulin. As a result of this insulin resistance, the blood glucose level in the body increases. In type 2 diabetes, the body does not make sufficient insulin or the insulin that is produced is not used well. It is otherwise also known as non-insulin-dependent diabetes mellitus, and since it usually occurs past middle age, it is also widely referred to as mature onset diabetes. If you have an intolerance to sugars, pancreatitis, gall stones, alcohol dependency, high levels of triglycerides, heart conditions, kidney conditions or pancreatic conditions, then inform your doctor before starting treatment with Januvia 50mg Tablet. This medication is not to be taken by children and adolescents below the age of 18. Hypoglycaemia (low blood sugar level), cough, runny or congested nose, and headache are some common side effects of this medication.