Compare Glucotrol vs. Lantus

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

Glucotrol
(glipizide)

Lantus
(insulin glargine)

Lowers blood sugar. Glucotrol (glipizide) is an effective medicine for lowering blood sugar, but it can cause your blood sugar level to be too low so you must always carry some form of sugar with you that can be readily used.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
4.29Glucotrol
Reviews for Glucotrol
50%
of people (All ages) say Glucotrol is worth it
32%
say it works well
19%
say it's a big hassle
332 reviews
Have you used Glucotrol (glipizide)?
Worth itNot sureNot worth it
Reviews for Lantus
67%
-17% worse vs. Glucotrol
51%
-19% worse vs. Glucotrol
14%
-5% worse vs. Glucotrol
584 reviews
Have you used Lantus (insulin glargine)?
Worth itNot sureNot worth it
Side effects
GlucotrolLantus
  • Dizziness 1%
  • Diarrhea 5%
  • Nervousness 1%
  • Tremor 4%
  • Passing gas 2%
  • Low blood sugar 3%
  • Constipation 3%
  • Nausea 3%
  • Headache 2%
More Glucotrol 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
GlucotrolLantus
Glucotrol (glipizide) stimulates your body to release insulin and lower blood sugar.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
GlucotrolLantus
Prescription onlyPrescription only
Available as
GlucotrolLantus
  • Pill
  • Extended release pill
  • Injection
Used for
GlucotrolLantus
Risk factors for serious side effects
GlucotrolLantus
  • Skipping meals or having inconsistent meal times
  • Drinking alcohol
  • Using other blood sugar-lowering medicine
  • People age 60 or older
  • Those with kidney and/or liver problems
Detailed Glucotrol (glipizide) 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.

Alcohol
GlucotrolLantus
  • Avoid drinking alcohol while taking Glucotrol (glipizide).
No alcohol related info.
Food
GlucotrolLantus
  • Eat regular and well-balanced meals to keep your blood sugar levels normal.
No food related info.
Kidneys and liver
GlucotrolLantus
No kidneys and liver related info.
  • Okay to use even if you have liver or kidney problems, unlike most other blood sugar-lowering medicines.
Weight
GlucotrolLantus
  • Can cause mild weight gain of 2-3lb.
  • Can cause weight gain and low blood sugar.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
Upsides and benefits
GlucotrolLantus
  • Lowers A1c levels by 1-2%.
  • Glucotrol (glipizide) is an oral medicine so it might be a good alternative for those who don't like injections.
  • Protects your organs and blood vessels by preventing the harmful effects of high blood sugar levels.
  • Okay to use by people with kidney problems.
  • Available as a generic form and is relatively cheap.
  • 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
GlucotrolLantus
  • Has a higher risk than other diabetes medicine for causing blood sugar levels to be too low.
  • While taking Glucotrol (glipizide), your blood sugars should be checked 2 to 5 times a week, but less often once you are on a stable dose.
  • Can cause mild weight gain of 2-3lb.
  • Might lose its effectiveness over time.
  • Needs to be taken 30 minutes before a meal for it to be most effective.
  • 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
GlucotrolLantus
  • Take the medicine 30 minutes before eating, usually before your first big meal of the day.
  • Avoid drinking alcohol while taking Glucotrol (glipizide).
  • Eat regular and well-balanced meals to keep your blood sugar levels normal.
  • Check your blood sugar regularly.
  • Glucotrol (glipizide) can cause dizziness so avoid activities that require coordination until you know how your body can handle the medicine.
  • 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 GlucotrolSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Glucotrol (glipizide)?
Worth itNot sureNot worth it
More about LantusSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Lantus (insulin glargine)?
Worth itNot sureNot worth it