Januvia vs. Amaryl

See how Januvia and Amaryl compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Januvia is a DPP-4 inhibitor with a low risk of hypoglycemia, while Amaryl is a sulfonylurea that can cause hypoglycemia and weight gain.

  • Amaryl is available as an inexpensive generic, while Januvia is a brand-name drug with a much higher typical monthly cost.

  • Both drugs are approved as add-ons to diet and exercise for type 2 diabetes, and neither is approved for type 1 diabetes or diabetic ketoacidosis.

Januvia vs. Amaryl Drug Summary

Januvia

Januvia (sitagliptin) is a DPP-4 inhibitor used to improve blood sugar control in adults with type 2 diabetes. It is taken as a single tablet once a day, with the dose adjusted for kidney function. It is typically added to diet and exercise and can be combined with other diabetes medications.

Amaryl

Amaryl (glimepiride) is a sulfonylurea used to improve blood sugar control in adults with type 2 diabetes. It is taken as a single tablet once a day, with the dose slowly increased over time to find the right amount. It works by helping the pancreas release more insulin and is available as an inexpensive generic.

Januvia vs. Amaryl Side Effects

Januvia

Most common
Upper respiratory tract infection (up to 15.5%)
Nasopharyngitis (up to 11.0%)
Peripheral edema (up to 8.3%)
Headache (up to 5.5%)

Amaryl

Most common
Hypoglycemia (up to 19.7%)
Accidental injury (up to 16%)
Dizziness (5% or more)
Headache (5% or more)

Januvia vs. Amaryl Dosage

Januvia

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 100 mg once daily At the start
Maximum dose 25 mg once daily If needed
Dose changes 2 increases As tolerated

Amaryl

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 1 mg or 2 mg once daily At the start
Maximum dose 8 mg once daily If needed
Dose changes 2 increases As tolerated

Januvia vs. Amaryl Indications

Januvia

Januvia is FDA-approved as an add-on to diet and exercise for adults with type 2 diabetes who need additional blood sugar control. It works by raising levels of natural incretin hormones, which helps the pancreas release insulin when blood sugar rises. It is not approved for type 1 diabetes or diabetic ketoacidosis.

  • Adjunct to diet and exercise in type 2 diabetes

  • Can be used alone or with other oral diabetes drugs

  • Not approved for type 1 diabetes or ketoacidosis

  • Dose adjusted for reduced kidney function

Amaryl

Amaryl is FDA-approved as an add-on to diet and exercise for adults with type 2 diabetes who need better blood sugar control. It works by stimulating the pancreas to release more insulin and can be combined with insulin in patients who don't respond well to either alone. It is not approved for type 1 diabetes or diabetic ketoacidosis.

  • Adjunct to diet and exercise in type 2 diabetes

  • Only sulfonylurea approved for use with insulin

  • Not approved for type 1 diabetes or ketoacidosis

  • Requires periodic dose titration over time

Januvia vs. Amaryl Pros and Cons

Januvia

Januvia offers a low risk of hypoglycemia and a weight-neutral profile, making it a reasonable option for patients who cannot tolerate sulfonylurea side effects. As a brand-name DPP-4 inhibitor, it costs considerably more each month than older generic options and needs dose adjustments based on kidney function.

Pros

  • Weight-neutral, unlike drugs that often cause weight gain

  • Low risk of hypoglycemia when used on its own

  • No routine blood sugar monitoring needed for dosing

  • No boxed warning, unlike some other diabetes drug classes

Cons

  • Roughly $330 to $730 per month without insurance, before savings programs

  • Dose must be adjusted for reduced kidney function

  • Postmarketing reports of severe joint pain and pancreatitis

  • Fewer decades of long-term safety data than older drugs

Amaryl

Amaryl is an inexpensive, well-established sulfonylurea with decades of use behind it, though it carries a real risk of hypoglycemia and weight gain. Its low cost and long-standing generic availability make it a common choice for patients watching their budget.

Pros

  • Roughly $15 to $110 per month without insurance, before savings programs

  • Decades of real-world safety data since its 1995 approval

  • Flexible once-daily dosing that can be titrated to effect

  • Can be combined with insulin when other options fail

Cons

  • Can cause hypoglycemia, sometimes severe

  • Often associated with weight gain

  • Older studies raised concerns about cardiovascular mortality

  • Requires caution in patients with G6PD deficiency

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