Januvia 50 mg Tablet is a medicine used to treat type 2 diabetes mellitus. It is used together with a healthy diet and regular exercise to control blood sugar levels. This helps to prevent serious complications of diabetes like kidney damage and blindness.Januvia 50 mg Tablet is normally prescribed when diet and exercise alone or other medicines have not been enough to control your blood sugar level. Your doctor may prescribe it alone or along with other diabetes medicines. It may be taken on an empty stomach or with a meal. The dose will depend on your condition, and blood sugar levels, but you should use it as advised by your doctor.You should take it regularly, at the same time each day, to get the most benefit and you should not stop unless your doctor recommends it. It is controlling your blood sugar levels and helping to prevent serious complications in the future. It is important to stay on the diet and exercise program recommended by your doctor while taking this medicine. Your lifestyle plays a big part in controlling diabetes.