Compare Janumet vs. Humalog

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

Lowers your blood sugar.

Janumet is a combination of two anti-diabetic medicines that work better together, but is available as brand only.

3.4/ 5 average rating with 79 reviewsforJanumet
Lowers blood sugar.

Humalog is a fast-acting insulin that provides meal-time sugar control. It can cause low blood sugar, so make sure you know what the symptoms are and always have a source of sugar nearby.

3.7/ 5 average rating with 280 reviewsforHumalog
Upsides
  • This 2-in-1 combination can lower the number of pills you have to take daily.
  • Lowers A1c (average blood sugar over time) up to 2.5%.
  • Available in extended and immediate release forms to allow better control of your blood sugar.
  • Doesn't increase your appetite unlike other anti-diabetic medicines.
  • Does not cause hypoglycemia or very low blood sugar.
  • Insulin is the most effective blood sugar-lowering medicine. When used correctly, it'll lower blood sugar every time you use it and prevent the harmful effects of high sugar levels on your organs and blood vessels.
  • Humalog is a fast-acting insulin that provides sugar control after meals.
  • Dose can be easily adjusted to make a customized regimen that's tailored to your body.
  • Starting insulin early in the treatment of Type 2 diabetes can maintain your body's insulin-producing cells and slow down disease progression.
  • Okay to use even if you have liver or kidney problems, unlike most other blood sugar-lowering medicines.
Downsides
  • Available as brand name only and may be expensive.
  • Metformin component usually causes upset stomach.
  • Sitagliptin component may increase your risk for throat infections and inflammation of pancreas.
  • Not appropriate for those with poor kidney function.
  • You have to take insulin by injection.
  • You have to check your blood sugar multiple times every day, usually before each meal.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
  • Higher risk of low blood sugar episodes than other kinds of diabetes medicines.
Used for
Dosage forms
  • Pill
  • Extended release
  • Injection
Price
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Reviews
79 reviews so far
46%
saidit'sworth it
38%
saiditworked well
15%
saidit'sa big hassle

Have you used Janumet (sitagliptin / metformin)?

Leave a review
280 reviews so far
64%
saidit'sworth it
50%
saiditworked well
16%
saidit'sa big hassle

Have you used Humalog (Insulin Lispro)?

Leave a review
Side effects
The Janumet (sitagliptin / metformin) FDA package insert doesn’t have numbers about how common side effects are.
The Humalog (Insulin Lispro) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Excess lactic acid in the blood
    • Kidney problems
    • Liver problems
    • Congestive heart failure
    • Using contrast dye for procedures
    • Surgery
    • Alcohol use
  • Low vitamin B12 levels
  • Inflammation of the pancreas
  • Serious allergic reactions
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
    • Unstable kidney functions
    • Unstable liver functions
  • Complications due to low potassium
    • Use of other medicine that lowers potassium
    • Current electrolyte imbalance
  • Severe allergic reactions
See more detailed risks and warnings