How soon after taking Januvia will my symptoms improve?

Januvia can help control your high blood sugar levels, but it cannot cure diabetes. Consequently, you must keep taking it as your doctor prescribes, based on your particular condition and lifestyle, in order to decrease your blood sugar and maintain the decrease. You should not stop taking Januvia, even if you are feeling well, until you speak with your doctor. If high blood sugar remains untreated, it can create severe health problems.