Compare Humalog vs. Glucotrol

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

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Humalog (insulin lispro)

Prescription only

Glucotrol (glipizide)

Prescription only
Lowers blood sugar.

Humalog (insulin lispro) is a fast-acting insulin that controls blood sugar around meal times.

3.7/ 5 average rating with 280 reviewsforHumalog
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.

3.2/ 5 average rating with 332 reviewsforGlucotrol
Upsides
  • Humalog (insulin lispro) is the most effective medication for lowering your blood sugar.
  • Works quickly to control your sugar levels after meals.
  • Dose can be easily adjusted to create a regimen that's tailored to your body's needs.
  • Humalog (insulin lispro) can be used even if you have liver or kidney problems, unlike other anti-diabetic medications.
  • 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.
Downsides
  • You have to take Humalog (insulin lispro) by injection.
  • Humalog (insulin lispro) is likely to cause moderate weight gain (around 4 to 6 pounds).
  • There is a higher risk for episodes of low blood sugar compared to other anti-diabetic medications.
  • Effects do not last long enough to control your blood sugar for a whole day.
  • 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.
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Used for
Dosage forms
  • Injection
  • Pill
  • Extended release pill
Price
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Reviews
280 reviews so far
64%
saidit'sworth it
50%
saiditworked well
16%
saidit'sa big hassle

Have you used Humalog (insulin lispro)?

Leave a review
332 reviews so far
50%
saidit'sworth it
32%
saiditworked well
19%
saidit'sa big hassle

Have you used Glucotrol (glipizide)?

Leave a review
Side effects
The Humalog (insulin lispro) FDA package insert doesn’t have numbers about how common side effects are.
9possible side effects
  • Dizziness
    7%
  • Diarrhea
    5%
  • Nervousness
    4%
  • Tremor
    4%
  • Low blood sugar
    3%
  • Constipation
    3%
  • Passing gas
    3%
  • Nausea
    3%
  • Headache
    2%
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 medications
    • Poor injection techniques
  • Complications due to low potassium
    • Use of medications that lower potassium
    • Current electrolyte imbalance
  • Severe allergic reactions
    • Allergy to insulin
See more detailed risks and warnings
  • Serious heart problems
  • Low blood sugar
    • 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
  • Severe allergic reaction
    • History of allergy to sulfa-containing medicine
  • Kidney and liver disease
    • Those with kidney and/or liver disease
  • Breakdown of red blood cells
    • People with G6PD deficiency
See more detailed risks and warnings