The starting dose of JANUMET should be based on the patient’s current regimen. JANUMET should be given twice daily with meals. The following doses are available:

50 mg sitagliptin/500 mg metformin hydrochloride

50 mg sitagliptin/1000 mg metformin hydrochloride.

The recommended starting dose in patients not currently treated with metformin is 50mg sitagliptin/500mg metformin hydrochloride twice daily, with gradual dose escalation recommended to reduce gastrointestinal side effects associated with metformin.

The starting dose in patients already treated with metformin should provide sitagliptin dosed as 50mg twice daily (100mg total daily dose) and the dose of metformin already being taken. For patients taking metformin 850mg twice daily, the recommended starting dose of JANUMET is 50mg sitagliptin/1000mg metformin hydrochloride twice daily.

Patients treated with an insulin secretagogue or insulin

Co-administration of JANUMET with an insulin secretagogue (e.g., sulfonylurea) or insulin may require lower doses of the insulin secretagogue or insulin to reduce the risk of hypoglycemia [see Warnings and Precautions (5.9)].

No studies have been performed specifically examining the safety and efficacy of JANUMET in patients previously treated with other oral antihyperglycemic agents and switched to JANUMET. Any change in therapy of type 2 diabetes should be undertaken with care and appropriate monitoring as changes in glycemic control can occur.

3 DOSAGE FORMS AND STRENGTHS
50 mg/500 mg tablets are light pink, capsule-shaped, film-coated tablets with “575” debossed on one side.
50 mg/1000 mg tablets are red, capsule-shaped, film-coated tablets with “577” debossed on one side.
4 CONTRAINDICATIONS
JANUMET (sitagliptin/metformin HCl) is contraindicated in patients with:

Renal disease or renal dysfunction, e.g., as suggested by serum creatinine levels ≥1.5 mg/dL [males], ≥1.4 mg/dL [females] or abnormal creatinine clearance which may also result from conditions such as cardiovascular collapse (shock), acute myocardial infarction, and septicemia [see Warnings and Precautions (5.1)].
Acute or chronic metabolic acidosis, including diabetic ketoacidosis, with or without coma.
History of a serious hypersensitivity reaction to JANUMET or sitagliptin (one of the components of JANUMET), such as anaphylaxis or angioedema. [See Warnings and Precautions (5.14); Adverse Reactions (6.2).]
JANUMET should be temporarily discontinued in patients undergoing radiologic studies involving intravascular administration of iodinated contrast materials, because use of such products may result in acute alteration of renal function [see Warnings and Precautions (5.11)].

5 WARNINGS AND PRECAUTIONS
5.1 Lactic Acidosis
Metformin hydrochloride

Lactic acidosis is a rare, but serious, metabolic complication that can occur due to metformin accumulation during treatment with JANUMET; when it occurs, it is fatal in approximately 50% of cases. Lactic acidosis may also occur in association with a number of pathophysiologic conditions, including diabetes mellitus, and whenever there is significant tissue hypoperfusion and hypoxemia. Lactic acidosis is characterized by elevated blood lactate levels (>5mmol/L), decre