Compare Moviprep vs. Dulcolax

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

Cleans your colon in preparation for a colonoscopy.

Cleans your colon and requires less volume intake than other bowel prep regimens.

Treats constipation.

Dulcolax (Bisacodyl) works fast and the suppositories work even faster to relieve your constipation, as long as you're okay with it "cramping" your style a bit.

3.8/ 5 average rating with 160 reviewsforDulcolax
  • In studies, Moviprep (polyethylene glycol-electrolyte solution) was as effective as other laxatives for cleansing the colon.
  • Unlike other colonoscopy preps that taste salty, Moviprep (polyethylene glycol-electrolyte solution) is lemon flavored.
  • You drink less fluid with Moviprep (polyethylene glycol-electrolyte solution) compared with other bowel preparations.
  • Most people said it was worth taking and it wasn't too much of a hassle.
  • Tablets give overnight relief of your constipation.
  • Dulcolax can also be used to treat constipation caused by spinal cord injury.
  • Suppositories give you quick relief without having to drink a large amount of liquid medicine.
  • You may experience common side effects such as abdominal bloating, diarrhea, thirst, dizziness, anal discomfort, and hunger.
  • Has a higher chance of causing sleep problems and serious chills than other colonscopy preparations.
  • Dulcolax can cause cramping, stomach upset, feeling faint, and the feeling that you "have to go right now".
  • You have to be comfortable with putting the medicine in your rectum.
  • Suppositories can cause slight rectal burning.
Used for
Dosage forms
  • Powder for reconstitution
  • Pill
  • Suppository
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160 reviews so far
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saiditworked well
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Side effects
12possible side effects
  • Abdominal bloating
  • Anal discomfort
  • Thirst
  • Nausea
  • Abdominal pain
  • Sleep problems
  • Shaking chills
  • Hunger
  • Flu-like symptoms
  • Vomiting
  • Dizziness
  • Headache
See more detailed side effects
The Dulcolax (Bisacodyl) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Electrolyte imbalance
  • Choking or vomiting
    • Swallowing prblems
    • Gastric reflux
  • Red blood cell problems
    • G6PD deficiency
  • Abnormal heartbeats
See more detailed risks and warnings
  • Bowel blockage
    • Age 60 or older
    • Malignancy
    • Other condition that causes blockage or narrowing of bowel
    • Taking medications that cause constipation
  • Laxative dependence
    • Age 60 or greater
    • Taking medications that cause constipation
    • People who can't walk or move well (immobility)
  • Risk to fetus
    • Women of childbearing age
See more detailed risks and warnings