Compare Victoza vs. Lantus

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

Victoza
(liraglutide)

Lantus
(insulin glargine)

Lowers your blood sugar. Victoza (liraglutide) is a medicine you inject once a day to control diabetes, but it can be expensive.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.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
6.5Victoza
Reviews for Victoza
73%
of people (All ages) say Victoza is worth it
91%
say it works well
27%
say it's a big hassle
Have you used Victoza (liraglutide)?
Worth itNot sureNot worth it
Reviews for Lantus
67%
+6% better vs. Victoza
51%
+40% better vs. Victoza
14%
-13% worse vs. Victoza
584 reviews
Have you used Lantus (insulin glargine)?
Worth itNot sureNot worth it
Side effects
VictozaLantus
  • Nausea 13%
  • Headache 4%
  • Diarrhea 6%
  • Low appetite 9%
  • Runny nose and congestion 1%
  • Head cold 1%
  • Vomiting 4%
  • Constipation 4%
  • Indigestion 3%
  • Back pain 1%
More Victoza side effects »
  • Upper respiratory tract infection 22%
  • Infection 9%
  • Accidental injury 6%
  • Headache 6%
  • Edema peripheral 20%
  • Hypertension 20%
  • Sinusitis 19%
  • Influenza 19%
  • Cataract 18%
  • Bronchitis 15%
More Lantus side effects »
How it works
VictozaLantus
Victoza (liraglutide) is a medication for diabetes. It stimulates your body to make and release more insulin, stops the body from releasing more sugar, and slows down digestion.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.
Type of medication
VictozaLantus
Prescription onlyPrescription only
Available as
VictozaLantus
  • Injection
  • Injection
Used for
VictozaLantus
Risk factors for serious side effects
VictozaLantus
  • History of MTC
  • History of MEN 2
  • History of pancreatitis
  • History of gallstones
  • alcoholism
Detailed Victoza (liraglutide) risks & warnings »
  • 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 »
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.

Kidneys and liver
VictozaLantus
  • Victoza (liraglutide) can cause or worsen kidney damage. This is more likely to happen if you've had nausea or vomiting, diarrhea or dehydration. Make sure to drink plenty of fluids and stay hydrated when you're sick. If you have kidney damage already, your doctor might do regular lab tests while you're taking Victoza (liraglutide) to make sure your kidneys stay healthy.
  • No limitation for people with kidney problems, but close monitoring is recommended.
  • Okay to use even if you have liver or kidney problems, unlike most other blood sugar-lowering medicines.
Weight
VictozaLantus
  • Helps with weight loss and controls appetite.
  • Can cause weight gain and low blood sugar.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
Upsides and benefits
VictozaLantus
  • Lowers A1c (average blood sugar over time) up to 1.5%.
  • Helps with weight loss and controls appetite.
  • Only medicine in this class with proven heart health benefits.
  • No limitation for people with kidney problems, but close monitoring is recommended.
  • Medicine is ready to use, without need to mix.
  • 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.
Downsides and risks
VictozaLantus
  • Only available as an injection.
  • Brand name medicine and can be expensive.
  • Compared to other similar medicines, you have to inject this every day.
  • 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.
Tips from our pharmacists for people taking the medication
VictozaLantus
  • Inject the dose given by your doctor daily at the same time on your belly, thighs, or the back of your upper arm. To be used with or without food.
  • You may have low appetite, nausea, vomiting, diarrhea, or stomach pain, which may get better with time.
  • Let your doctor know if you have severe and/or persistent stomach pain or nausea with or without vomiting.
  • Unused pens should be stored in the refrigerator, but the pen in use can be kept at room temperature for up to 30 days.
  • 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.
Learn more
More about VictozaSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Victoza (liraglutide)?
Worth itNot sureNot worth it
More about LantusSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Lantus (insulin glargine)?
Worth itNot sureNot worth it