Compare Glucotrol vs. Januvia

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

Glucotrol (glipizide)

Prescription only

Januvia (sitagliptin)

Prescription only
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
Lowers your blood sugar.

Januvia (sitagliptin) is a good add-on treatment if your blood sugars are not controlled and you don't want to use an injectable medicine.

3.2/ 5 average rating with 143 reviewsforJanuvia
Upsides
  • 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.
  • Oral blood sugar-lowering medicine.
  • Januvia (sitagliptin) is not linked to worsening heart failure like other medicines in its class.
  • Uses the hormones naturally produced by your body to affect how sugar is processed.
  • It is less likely to cause weight gain and low blood sugar compared to other diabetes medicines.
Downsides
  • 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.
  • Lowers A1c (average blood sugar over time) by less than 1%.
  • Available as brand version only.
  • Some people might get frequent cold-like symptoms.
  • Rare but serious side effects include pancreatitis and severe joint pain.
Used for
Dosage forms
  • Pill
  • Extended release pill
  • Pill
Price
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Reviews
332 reviews so far
50%
saidit'sworth it
32%
saiditworked well
19%
saidit'sa big hassle

Have you used Glucotrol (glipizide)?

Leave a review
143 reviews so far
44%
saidit'sworth it
34%
saiditworked well
17%
saidit'sa big hassle

Have you used Januvia (sitagliptin)?

Leave a review
Side effects
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
3possible side effects
  • Common cold
    5%
  • Diarrhea
    3%
  • Abdominal pain
    2%
See more detailed side effects
Risks and risk factors
  • 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
  • Death from inflammation of the pancreas (pancreatitis)
    • History of pancreatitis
    • High blood triglyceride levels
    • Gallstones (stones in gallbladder)
    • History of alchoholism
    • Kidney problems
  • Serious allergic reactions
  • Kidney damage
    • Pre-existing kidney damage
  • Low blood sugar (hypoglycemia)
    • Taking medicines for diabetes
  • Severe joint pain and swelling
See more detailed risks and warnings