Januvia 50mg tablet contains sitagliptin which is an oral antidiabetic drug used to bring down the glucose levels in individuals experiencing type 2 diabetes You might be given this medication alone or in mix for certain different prescriptions for diabetes contingent on your body s necessity Accept this medication as endorsed and for the span it is recommended for by your primary care physician Miss no portion or take it more than that suggested by the specialist This medication isn t suggested in patients under 18 years old