Compare Januvia vs. Novolog

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

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Januvia (sitagliptin)

Prescription only

Novolog (insulin aspart)

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.

Novolog (insulin aspart) is a fast-acting insulin that provides meal-time blood sugar control. For long-term control, you'll need to take Novolog (insulin aspart) with other medicines to keep your overall blood sugar down.

3.5/ 5 average rating with 177 reviewsforNovolog
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.
  • When used correctly, this medication will l lower blood sugar every time you use it and prevent the harmful, long-term effects of high sugar levels on your organs and blood vessels.
  • You can easily change the dose of Novolog (insulin aspart) to fit your individual needs.
  • Starting insulin early in the treatment of Type 2 diabetes can maintain your body's insulin-producing cells and slow down disease progression.
  • Can use Novolog (insulin aspart) even if you have liver or kidney problems, unlike many other blood sugar-lowering medicines.
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.
  • Have to take insulin by injection.
  • Might have to check your blood sugar multiple times a day, usually before each meal.
  • Novolog (insulin aspart) is likely to cause moderate weight gain.
  • Higher risk of low blood sugar episodes compared to other kinds of diabetes medications.
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Used for
Dosage forms
  • Pill
  • Injection
Price
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Reviews
143 reviews so far
44%
saidit'sworth it
34%
saiditworked well
17%
saidit'sa big hassle

Have you used Januvia (sitagliptin)?

Leave a review
177 reviews so far
58%
saidit'sworth it
46%
saiditworked well
19%
saidit'sa big hassle

Have you used Novolog (insulin aspart)?

Leave a review
Side effects
3possible side effects
  • Common cold
    5%
  • Diarrhea
    3%
  • Abdominal pain
    2%
See more detailed side effects
The Novolog (insulin aspart) 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
  • Life-threatening low blood sugar (Hypoglycemia)
    • Insulin dose too high
    • Use of other blood sugar lowering medicines
    • Poor injection techniques
    • Changes in meal pattern or exercise
    • Kidney problems
    • Liver problems
  • Complications due to low potassium
    • Use of medications that lower potassium
    • Current imbalance of electrolytes
  • Severe allergic reactions
    • Allergy to insulin
See more detailed risks and warnings