Compare Lantus vs. Toujeo

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

ADVERTISEMENT

Lantus (insulin glargine)

Prescription only

Toujeo (insulin glargine)

Prescription only
Lowers blood sugar.

Lantus (insulin glargine) is an effective, long-acting insulin that provides all-day blood sugar control, but it can cause low blood sugar levels, so be sure to have a source of sugar nearby.

3.7/ 5 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 one of the most effective blood sugar-lowering medication and can lower your A1c (average blood sugar over time) by up to 2-3%.
  • Lantus (insulin glargine) is a long-lasting insulin that provides consistent, all-day sugar control with just once or twice daily dosing.
  • Dose can be easily adjusted to make a customized regimen that's tailored to your body's needs.
  • Lantus (insulin glargine) can be used with liver or kidney problems.
  • 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 regularly to assure your medications are working.
  • You may gain some weight, around 4-6 pounds.
  • You have to maintain a consistent schedule to avoid low blood sugar episodes. Dramatic changes in weight or meal patterns will require dose adjustments.
  • 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.
ADVERTISEMENT
Used for
Dosage forms
  • Injection
  • Injection
Price
Want to save even more money?
Sign up now for a 30-day trial and save up to 95% at CVS, Kroger, Albertsons, and other pharmacies.
Learn more
Reviews
584 reviews so far
67%
saidit'sworth it
51%
saiditworked well
14%
saidit'sa big hassle

Have you used Lantus (insulin glargine)?

Leave a review
Not enough review data.Leave a review
Side effects
19possible side effects
  • Upper respiratory tract infection
    28%
  • Swelling in the limbs
    20%
  • High blood pressure
    20%
  • Flu
    19%
  • Sinus infection
    19%
  • Cataracts
    18%
  • Inflammation of the airways
    15%
  • Joint pain
    14%
  • Pain in extremity
    13%
  • Back pain
    13%
  • Cough
    12%
  • Urinary tract infection
    11%
  • Diarrhea
    11%
  • Depression
    11%
  • Infection
    10%
  • Headache
    10%
  • Blood vessel disease
    7%
  • Retinal vein disorder
    6%
  • Injection site pain
    3%
See more detailed side effects
3possible side effects
  • Hypoglycemia (low blood sugar)
    69%
  • Common cold
    13%
  • Lung infection
    10%
See more detailed side effects
Risks and risk factors
  • Life-threatening low blood sugar (Hypoglycemia)
    • Insulin dose too high
    • Use of other blood sugar lowering medicines
    • Poor injection techniques
  • Complications due to low potassium
    • Use of other medicine that lower potassium
    • Current electrolyte imbalance
  • Severe allergic reactions
    • Allergy to insulin
See more detailed risks and warnings
  • Sharing of Toujeo (insulin glargine) pens
  • Changes in blood sugar levels
    • Changes in insulin
    • Alcohol
    • Other anti-diabetic medications
  • Medication errors
    • Using more than one insulin at a time
  • Severe allergic reactions
    • Allergic reactions to other insulins
  • Hypoglycemia (low blood sugars)
  • Fluid accumulation leading to heart failure
    • Taking thiazolidinediones in combination with insulin
See more detailed risks and warnings