Compare Glucotrol vs. Novolog

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

Glucotrol
(glipizide)

Novolog
(insulin aspart)

Lowers blood sugar. Glucotrol (Glipizide) is a very effective oral blood sugar-lowering medicine. 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. Novolog is a fast-acting insulin that provides meal-time 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.
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Best available price for 60 (5mg) tablets of glipizide
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Reviews & ratings
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4.29Glucotrol
Reviews for Glucotrol (glipizide)
50%
of people (All ages) say Glucotrol (glipizide) 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 Novolog (insulin aspart)
58%
+8% better vs. Glucotrol (glipizide)
46%
+14% better vs. Glucotrol (glipizide)
19%
Same vs. Glucotrol (glipizide)
177 reviews
Have you used Novolog (insulin aspart)?
Worth itNot sureNot worth it
Side effects
GlucotrolNovolog
  • Dizziness 1%
  • Diarrhea 5%
  • Nervousness 1%
  • Tremor 4%
  • Passing gas 2%
  • Drowsiness 2%
More Glucotrol side effects »
  • Decreased muscle reflexes 11%
  • Nail fungal infection 10%
  • Abnormal sense of touch 9%
  • Urinary tract infection 8%
  • Chest pain 5%
  • Headache 5%
  • Skin disorder 5%
  • Abdominal pain 5%
  • Sinus inflammation 5%
  • Injury accidental 11%
More Novolog side effects »
How it works
GlucotrolNovolog
Glucotrol (Glipizide) is an anti-diabetic drug. It stimulates your body to make more insulin to lower blood sugar.Novolog is a short-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 after meals.
Type of medication
GlucotrolNovolog
Prescription only
Prescription only
Available as
GlucotrolNovolog
  • Pill
  • Extended release
  • Injection
Used for
GlucotrolNovolog
Risk factors for serious side effects
GlucotrolNovolog
  • Use of other blood sugar lowering medicines
  • Alcohol
  • Intense physical activity
  • History of sulfa allergies
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 Novolog (insulin aspart) 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.

Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

Alcohol
GlucotrolNovolog
  • Avoid drinking alcohol.
No alcohol related info.
Food
GlucotrolNovolog
  • Food can cause unpredictable effects of the immediate-release version of Glipizide, so you have to take it at least 30 minutes before a meal.
  • Eat regular, balanced meals to avoid low blood sugar.
  • Novolog is a fast-acting insulin that provides sugar control after meals.
  • Short-acting insulin good for blood sugar control around meal times.
Kidneys and liver
GlucotrolNovolog
  • Might be a better choice for people with kidney problems compared to similar drugs because Glipizide isn't processed by the kidneys.
  • Okay to use even if you have liver or kidney problems, unlike most other blood sugar-lowering medicines.
Weight
GlucotrolNovolog
  • Can cause mild weight gain (2 to 3 pounds).
  • Can cause weight gain, dizziness, or stomach upset.
  • Likely to cause moderate weight gain (around 4 to 6 pounds).
  • Can cause weight gain and low blood sugar.
Upsides and benefits
GlucotrolNovolog
  • Oral blood sugar-lowering medicine.
  • Lowers A1c levels by 1-2%. (Hemoglobin A1c measures your average blood sugar over time.)
  • Prevents the harmful effects of high sugar levels on your organs and blood vessels.
  • Might be a better choice for people with kidney problems compared to similar drugs because Glipizide isn't processed by the kidneys.
  • One of the least expensive diabetes medicines.
  • 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.
  • Novolog is a fast-acting insulin that provides sugar control after meals.
  • 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
GlucotrolNovolog
  • Higher risk of low blood sugar episodes than other kinds of oral diabetes medicines.
  • You have to check your blood sugar 2 to 5 times a week (less often once you are on a stable dose).
  • Can cause mild weight gain (2 to 3 pounds).
  • Loses effectiveness over time or as your body stops making insulin.
  • Food can cause unpredictable effects of the immediate-release version of Glipizide, so you have to take it at least 30 minutes before a meal.
  • You have to take insulin by injection.
  • You have to check your blood sugar multiple times every day, usually before each meal.
  • 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
GlucotrolNovolog
  • Works best if you take it 30 minutes before a meal, usually your first big meal of the day.
  • Can cause weight gain, dizziness, or stomach upset.
  • Avoid drinking alcohol.
  • Eat regular, balanced meals to avoid low blood sugar.
  • Check your blood sugar regularly.
  • Short-acting insulin good for blood sugar control around meal times.
  • Take 5 to 10 minutes before a meal. Effects last for 2-4 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.
  • Make sure you understand how to give yourself the injections.
  • When mixing with another insulin (such as insulin NPH), draw this insulin into the syringe first.
  • Don't shake the vial. 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 NovologSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Novolog (insulin aspart)?
Worth itNot sureNot worth it