Compare Byetta vs. Precose

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



Lowers blood sugar. Byetta (Exenatide) can lower your blood sugars in addition to metformin. It does not increase your appetite unlike some other anti-diabetics, but must be given by injection and usually causes upset stomach.Coming soon.
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Coupons for Precose
Best available price for 90 (25mg) tablets of acarbose
Reviews & ratings
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Reviews for Byetta (exenatide)
Not enough review data. Review it!
of people (All ages) say Byetta (exenatide) is worth it
Not enough review data. Review it!
say it works well
Not enough review data. Review it!
say it's a big hassle
Have you used Byetta (exenatide)?
Worth itNot sureNot worth it
Reviews for Precose (acarbose)
Not enough review data. Review it!
+50% better vs. Byetta (exenatide)
Not enough review data. Review it!
+50% better vs. Byetta (exenatide)
Not enough review data. Review it!
Same vs. Byetta (exenatide)
Have you used Precose (acarbose)?
Worth itNot sureNot worth it
Side effects
  • Low blood sugar 11%
  • Nausea 33%
  • Diarrhea 10%
  • Vomiting 14%
  • Headache 10%
  • Constipation 8%
  • Indigestion 5%
  • Weakness 4%
  • Abdominal swelling 3%
  • Loss of appetite 3%
More Byetta side effects »

We haven’t found good data for Precose side effects.

FDA side effect reports for Precose »
How it works
Byetta (Exenatide) enhances the release of insulin in your gut and pancreas to lower your blood sugar.Coming soon.
Type of medication
Prescription only
Available as
  • Injection
  • Pill
Used for
  • Diabetes Mellitus Type 2
Risk factors for serious side effects
  • Severe renal impairment
  • End-stage renal disease
  • Severe gastrointestinal disease
  • Gastroparesis
Detailed Byetta (exenatide) risks & warnings »
    Coming soon.

    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.

    Kidneys and liver
    • If you have severe kidney or liver problems, you should not take Byetta (Exenatide). Talk to your doctor about testing your kidneys before starting Byetta (Exenatide). People taking medications that are damaging to kidneys such as ACE inhibitors, NSAIDs or diuretics in addition to Byetta (Exenatide) may notice nausea, vomiting, or diarrhea.
    No kidneys and liver related info.
    • Using Byetta (Exenatide) has been associated with stomach pain, nausea, vomiting and diarrhea. If you have severe gastrointestinal disease such as Crohn’s Disease or Ulcerative Colitis, you should talk to your doctor about using a different medicine for diabetes. You should not use Byetta (Exenatide) if you have gastroparesis, a condition that causes slow or irregular digestion. Gastroparesis can be common for people that have had uncontrolled diabetes for a while.
    No pain related info.
    Upsides and benefits
    • Can lower your A1c (average blood sugar over time) by 1%.
    • Not as likely to cause very low blood sugar as glyburine or insulin.
    • Does not increase your appetite like other anti-diabetic medicines.
    • Pen is dialed to a single dose for easy injections.
    Coming soon
    Downsides and risks
    • Byetta (Exenatide) must be injected twice a day. Other medicines like it can be injected once daily or even weekly.
    • It commonly causes nausea, vomiting, diarrhea, constipation, or indigestion.
    • Can affect how well your antibiotics and birth control pills work. Take them no sooner than one hour after your injections.
    Coming soon
    Tips from our pharmacists for people taking the medication
    • Inject into your belly, thighs, or upper arms within an hour of your main meals.
    • Store unused pens in the refrigerator.
    • After first use, pens can be kept at room temperature for 30 days.
    • Change the needle and prime the pen every time you inject.
    • If you're also on insulin, don't inject into the same site.
    • Best to check your blood sugar once a day to make sure your medicine is working properly.
    Coming soon
    Learn more
    More about ByettaSide effectsReviews & ratingsAlternativesFDA package insert
    Have you used Byetta (exenatide)?
    Worth itNot sureNot worth it
    More about PrecoseSide effectsReviews & ratingsFDA package insert
    Have you used Precose (acarbose)?
    Worth itNot sureNot worth it