| Diabetes Mellitus, Non-Insulin-Dependent
Janumet vs Onglyza
Side-by-side clinical, coverage, and cost comparison for diabetes mellitus, non-insulin-dependent.Deep comparison between: Janumet vs Onglyza 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 signalsOnglyza has a higher rate of injection site reactions vs Janumet based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Onglyza but not Janumet, including UnitedHealthcare
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Category
Janumet
Onglyza
At A Glance
Oral
Twice daily
DPP-4 inhibitor / biguanide combination
Oral
Daily
DPP-4 inhibitor
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 2.5 mg or 5 mg orally once daily taken regardless of meals; reduce to 2.5 mg once daily for eGFR <45 mL/min/1.73 m2 or when coadministered with strong CYP3A4/5 inhibitors.
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
- History of serious hypersensitivity reaction to saxagliptin or any ingredient in ONGLYZA (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
Serious Pancreatitis, heart failure, hypoglycemia with insulin or insulin secretagogues, hypersensitivity reactions, severe and disabling arthralgia, bullous pemphigoid
Postmarketing Pancreatitis, anaphylaxis, angioedema, exfoliative skin conditions, rhabdomyolysis, severe and disabling arthralgia, bullous pemphigoid
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.
Saxagliptin is a competitive DPP-4 inhibitor that slows the inactivation of incretin hormones (GLP-1 and GIP), increasing their bloodstream concentrations and reducing fasting and postprandial glucose concentrations in a glucose-dependent manner in patients with type 2 diabetes mellitus.
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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)
Onglyza
- 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)
Onglyza
- 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)
Onglyza
- Covered on 0 commercial plans
- PA (3/3) · 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 Onglyza.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.