Compare Lantus vs. Toujeo

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

Lantus
(insulin glargine)

Toujeo
(insulin glargine)

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.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.
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Coupons for Lantus
Best available price for 15 (5 solostar pens of 3ml) cartons of lantus
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5.08Lantus
Reviews for Lantus
67%
of people (All ages) say Lantus is worth it
51%
say it works well
14%
say it's a big hassle
584 reviews
Have you used Lantus (insulin glargine)?
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Have you used Toujeo (insulin glargine)?
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Side effects
LantusToujeo
  • Ear, nose, or throat infection 22%
  • Infection 9%
  • Accidental injury 6%
  • Headache 6%
  • Ankle and leg swelling 20%
  • High blood pressure 20%
  • Sinus inflammation 19%
  • Flu 19%
  • Clouded eye lens 18%
  • Bronchitis 15%
More Lantus side effects »
  • Hypoglycemia (low blood sugar) 69%
  • Common cold 13%
  • Lung infection 10%
  • Viral infection of the nose and throat 7%
  • Hypoglycemia (low blood sugar) that requires medical attention 5%
More Toujeo side effects »
How it works
LantusToujeo
Lantus (Insulin Glargine) is a long-acting insulin medicine for diabetes. It acts like the insulin that your body normally makes to process sugars and fats, and it keeps your blood sugar stable throughout the day.Toujeo (insulin glargine) is a long-acting insulin that lowers blood sugar in your body.
Type of medication
LantusToujeo
Prescription onlyPrescription only
Available as
LantusToujeo
  • Injection
  • Injection
Used for
LantusToujeo
Risk factors for serious side effects
LantusToujeo
  • Insulin dose too high
  • Use of other blood sugar lowering medicines
  • Poor injection techniques
  • Unstable kidney functions
  • Unstable liver functions
Detailed Lantus (insulin glargine) risks & warnings »
  • Changes in insulin
  • Alcohol
  • Other anti-diabetic medications
  • Using more than one insulin at a time
  • Allergic reactions to other insulins
Detailed Toujeo (insulin glargine) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Food
LantusToujeo
No food related info.
  • Keep a consistent meal and exercise schedule to prevent any fluctuations in your blood sugar.
Kidneys and liver
LantusToujeo
  • Okay to use even if you have liver or kidney problems, unlike most other blood sugar-lowering medicines.
No kidneys and liver related info.
Weight
LantusToujeo
  • Can cause weight gain and low blood sugar.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
  • Can cause weight gain like other insulins
Upsides and benefits
LantusToujeo
  • 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 and risks
LantusToujeo
  • 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.
Tips from our pharmacists for people taking the medication
LantusToujeo
  • Long-acting insulin good for baseline blood sugar control.
  • Works in 1 hour and lasts about 24 hours.
  • Can cause weight gain and low blood sugar.
  • Make sure you and your family know the symptoms of low blood sugar: sweating, shakiness, weakness, fast heartbeat, nervousness, headache, blurry vision, trouble thinking clearly, or passing out.
  • Always have a good source of sugar nearby for low blood sugar episodes.
  • Take it at the same time every day.
  • Make sure you understand how to give yourself the injections.
  • Don't shake the vial or mix with another insulin. Store unopened vials in the refrigerator. Opened vials are good at room temperature for 28 days.
  • Check your blood sugar levels every day.
  • Can be kept at room temperature for 28 days.
  • Inject at the same time each day, but rotate injection sites to prevent skin irritation or deformity.
  • Do not mix with any other types of insulin.
  • Keep a consistent meal and exercise schedule to prevent any fluctuations in your blood sugar.
  • Do not reuse or share pen needles.
Learn more
More about LantusSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Lantus (insulin glargine)?
Worth itNot sureNot worth it
More about ToujeoSide effectsAlternativesFDA package insert
Have you used Toujeo (insulin glargine)?
Worth itNot sureNot worth it