Compare Januvia vs. Onglyza

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Januvia (sitagliptin)

Prescription only

Onglyza (saxagliptin)

Prescription only
Lowers your blood sugar.

Januvia (sitagliptin) is a good add-on treatment if your blood sugars are not controlled and you don't want to use an injectable medicine.

3.2/ 5 average rating with 143 reviewsforJanuvia
Lowers blood sugar.

Onglyza (saxagliptin) can cause heart failure unlike other medicines that work just like it.

Upsides
  • Oral blood sugar-lowering medicine.
  • Januvia (sitagliptin) is not linked to worsening heart failure like other medicines in its class.
  • Uses the hormones naturally produced by your body to affect how sugar is processed.
  • It is less likely to cause weight gain and low blood sugar compared to other diabetes medicines.
  • DRUG-NAME is an oral blood sugar lowering medicine. It's a good option if you don't like injections.
  • Does not cause weight gain.
  • May be a good option for those with bad liver function.
  • Does not cause hypoglycemia (low blood sugar) when taken by itself.
Downsides
  • Lowers A1c (average blood sugar over time) by less than 1%.
  • Available as brand version only.
  • Some people might get frequent cold-like symptoms.
  • Rare but serious side effects include pancreatitis and severe joint pain.
  • Typically not first-choice treatment for diabetes.
  • Only lowers A1C (average blood sugar over time) by ~0.5%.
  • Risk for heart failure has not been seen in other medicines that work just like it.
  • May be more expensive than other anti-diabetic medicines.
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Used for
Dosage forms
  • Pill
  • Pill
Price
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Reviews
143 reviews so far
44%
saidit'sworth it
34%
saiditworked well
17%
saidit'sa big hassle

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Side effects
3possible side effects
  • Common cold
    5%
  • Diarrhea
    3%
  • Abdominal pain
    2%
See more detailed side effects
The Onglyza (saxagliptin) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Death from inflammation of the pancreas (pancreatitis)
    • History of pancreatitis
    • High blood triglyceride levels
    • Gallstones (stones in gallbladder)
    • History of alchoholism
    • Kidney problems
  • Serious allergic reactions
  • Kidney damage
    • Pre-existing kidney damage
  • Low blood sugar (hypoglycemia)
    • Taking medicines for diabetes
  • Severe joint pain and swelling
See more detailed risks and warnings
  • inflammation of the pancreas
    • Alcoholism
    • Elevated triglycerides
    • History of pancreatitis
    • Gallstones
  • Heart failure
    • History of heart failure
    • Bad kidney function
  • Low blood sugar (hypoglycemia)
    • Alcohol
    • Unexpected changes in diet
    • Changes in amount of exercise
    • Taking other anti-diabetic medications
  • Severe allergic reactions
  • Severe joint pain
  • Fluid-filled blisters on the skin (bullous pemphigoid)
See more detailed risks and warnings