Compare Lantus vs. Toujeo

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

Lantus (Insulin Glargine)

Prescription only

Toujeo (insulin glargine)

Prescription only
Lowers blood sugar.

Lantus (Insulin Glargine) is a long-acting insulin that provides all-day 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.

5.1/ 7 average rating with 584 reviewsforLantus
Lowers blood sugar.

Toujeo (insulin glargine) is a concentrated long-actin insulin that allows you to inject higher doses at lower volume compared to other long-acting insulins like Lantus and Levemir.

Upsides
  • 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.
  • Lantus is a long-lasting insulin that provides consistent, all-day sugar control with less risk of low blood sugar.
  • 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.
  • Most effective medicine for controlling your blood sugar.
  • Can be injected once daily.
  • Contains 3 times as much insulin as other long-acting insulins, which means that you can inject lower fluid volume.
  • Can be used in patients 65 and older.
Downsides
  • You have to take insulin by injection.
  • You have to check your blood sugar every day.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
  • Higher risk of low blood sugar episodes than other kinds of diabetes medicines.
  • Has to be injected.
  • Can cause weight gain like other insulins
  • Can cause low blood sugar (hypoglycemia), especially if you do not take it consistently or have an inconsistent meal and exercise schedule.
Used for
Dosage forms
  • Injection
  • Injection
Price
Lowest price near you
$389.68
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Reviews
584 
67%
think this treatment is worth it
51%
think this treatment works well
14%
think this treatment is a hassle

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Side effects
2possible side effects
  • Angiopathy
    7%
  • Injection site pain
    3%
See more detailed side effects
The Toujeo (insulin glargine) FDA package insert doesn’t have numbers about how common side effects are.
Risks and warnings
  • Life-threatening low blood sugar (Hypoglycemia)

    Insulin dose too high

    ...and 4 more risk factors

  • Complications due to low potassium

    Use of other medicine that lowers potassium

    ...and 1 more risk factors

See more detailed risks and warnings
  • Changes in blood sugar levels

    Changes in insulin

    ...and 2 more risk factors

  • Medication errors

    Using more than one insulin at a time

  • Severe allergic reactions

    Allergic reactions to other insulins

  • Fluid accumulation leading to heart failure

    Taking thiazolidinediones in combination with insulin

See more detailed risks and warnings