| Diabetes Mellitus, Non-Insulin-Dependent
Janumet vs Kombiglyze XR
Side-by-side clinical, coverage, and cost comparison for diabetes mellitus, non-insulin-dependent.Deep comparison between: Janumet vs Kombiglyze with Prescriber.AI
AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.Safety signalsKombiglyze has a higher rate of injection site reactions vs Janumet based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Kombiglyze but not Janumet, including UnitedHealthcare
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Category
Janumet
Kombiglyze
At A Glance
Oral
Twice daily
DPP-4 inhibitor / biguanide combination
Oral
Once daily
DPP4 inhibitor + biguanide
Indications
- Diabetes Mellitus, Non-Insulin-Dependent
- Diabetes Mellitus, Non-Insulin-Dependent
Dosing
Diabetes Mellitus, Non-Insulin-Dependent 50 mg sitagliptin/500 mg metformin HCl twice daily with meals as starting dose for patients not on metformin; for patients on metformin HCl 850 mg twice daily, start at 50 mg sitagliptin/1000 mg metformin HCl twice daily; max 100 mg sitagliptin/2000 mg metformin HCl daily; do not split or divide tablets.
Diabetes Mellitus, Non-Insulin-Dependent Administer once daily with the evening meal; individualize starting dose based on current regimen; max 5 mg saxagliptin/2,000 mg metformin HCl extended-release once daily; limit saxagliptin to 2.5 mg daily with strong CYP3A4/5 inhibitors; swallow tablets whole.
Contraindications
- Severe renal impairment (eGFR below 30 mL/min/1.73 m2)
- Acute or chronic metabolic acidosis, including diabetic ketoacidosis
- History of a serious hypersensitivity reaction to JANUMET, sitagliptin, or metformin, such as anaphylaxis or angioedema
- Severe renal impairment (eGFR below 30 mL/min/1.73 m2)
- Acute or chronic metabolic acidosis, including diabetic ketoacidosis
- History of serious hypersensitivity reaction to saxagliptin, metformin HCl, or any ingredient in KOMBIGLYZE XR, including anaphylaxis, angioedema, or exfoliative skin conditions
Adverse Reactions
Most common (>=5%) Diarrhea, upper respiratory tract infection, headache, nasopharyngitis, nausea/vomiting, flatulence, abdominal discomfort, indigestion, asthenia
Serious Lactic acidosis, pancreatitis, heart failure, acute renal failure, hypoglycemia (with sulfonylurea or insulin), hypersensitivity reactions, severe and disabling arthralgia, bullous pemphigoid
Postmarketing Anaphylaxis, angioedema, rash, urticaria, cutaneous vasculitis, Stevens-Johnson syndrome, hepatic enzyme elevations, fatal and non-fatal hemorrhagic and necrotizing pancreatitis, worsening renal function, acute renal failure, tubulointerstitial nephritis, rhabdomyolysis, constipation, myalgia, back pain, pruritus, mouth ulceration, cholestatic and hepatocellular liver injury
Most common (>=5%) Upper respiratory tract infection, urinary tract infection, headache (saxagliptin); diarrhea, nausea/vomiting (metformin)
Serious Lactic acidosis, pancreatitis, heart failure, hypoglycemia with insulin or insulin secretagogues, hypersensitivity reactions, severe and disabling arthralgia, bullous pemphigoid, vitamin B12 decrease
Postmarketing Pancreatitis, anaphylaxis, angioedema, exfoliative skin conditions, rhabdomyolysis, bullous pemphigoid, cholestatic and hepatocellular liver injury
Pharmacology
Sitagliptin is a DPP-4 inhibitor that slows inactivation of incretin hormones GLP-1 and GIP, increasing insulin release and decreasing glucagon in a glucose-dependent manner; metformin is a biguanide that decreases hepatic glucose production, reduces intestinal glucose absorption, and improves peripheral insulin sensitivity by increasing glucose uptake and utilization.
Kombiglyze XR combines saxagliptin, a competitive DPP4 inhibitor that slows incretin hormone (GLP-1, GIP) inactivation to enhance glucose-dependent insulin release and suppress glucagon, and metformin HCl, a biguanide that decreases hepatic glucose production, reduces intestinal glucose absorption, and improves peripheral insulin sensitivity.
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Most Common Insurance
Anthem BCBS
Janumet
- Covered on 5 commercial plans
- PA (1/12) · Step Therapy (9/12) · Qty limit (11/12)
Kombiglyze
- Covered on 5 commercial plans
- PA (10/12) · Step Therapy (9/12) · Qty limit (9/12)
UnitedHealthcare
Janumet
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (2/8)
Kombiglyze
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (7/8)
Humana
Janumet
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (1/3) · Qty limit (3/3)
Kombiglyze
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (0/3) · Qty limit (3/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
No savings programs available for Janumet.
No savings programs available for Kombiglyze.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.