Compare Human Insulin vs. Glucotrol

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

Humulin (Human Insulin)

Prescription only

Glucotrol (glipizide)

Prescription only
Lowers blood sugar.

This form of insulin is one of the few medications in its class that you can get without a prescription, but it's expensive.

5.0/ 7 average rating with 57 reviewsforHuman Insulin
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.

4.3/ 7 average rating with 332 reviewsforGlucotrol
Upsides
  • Some types of this medication are available without a prescription.
  • Available as a shot to be injected into the fatty part of the skin, and as a powder to be inhaled through your nose.
  • Available in different combinations so that you can do one shot or multiple shots a day.
  • 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
  • Has to be taken exactly as directed or it can cause high or low blood sugar.
  • As with all insulins, you have to work with your doctor closely to make sure you're giving yourself the correct dose, or you can have low or high blood sugar.
  • 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.
Used for
Dosage forms
  • Injection
  • Inhaler
  • Pill
  • Extended release pill
Price
No pricing information available
Lowest price near you
$9.99
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Reviews
57 
67%
think this treatment is worth it
46%
think this treatment works well
11%
think this treatment is a hassle

Have you used Humulin (Human Insulin)?

Leave a review
332 
50%
think this treatment is worth it
32%
think this treatment works well
19%
think this treatment is a hassle

Have you used Glucotrol (glipizide)?

Leave a review
Side effects
The Humulin (Human Insulin) 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 warnings
See more detailed risks and warnings
  • Low blood sugar

    Skipping meals or having inconsistent meal times

    ...and 4 more risk factors

  • 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