Compare Dulcolax vs. Colace

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

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Dulcolax (Bisacodyl)

Over-the-counter

Colace (docusate)

Over-the-counter
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
Softens your stools.

Colace (docusate) softens the stool, but may not stimulate a bowel movement as quickly as a laxative.

3.6/ 5 average rating with 125 reviewsforColace
Upsides
  • 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.
  • Safer than laxatives.
  • Available over-the-counter.
  • Safe to use in children as young as 2 years old.
Downsides
  • 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.
  • May take up to 5 days for the full effects to kick in.
  • Intended to be used only as a short-term solution for occasional constipation. Other options such as fiber supplements may be more useful for maintaining regular bowel movements.
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Used for
Dosage forms
  • Pill
  • Suppository
  • Pill
  • Enema
  • Liquid
No pricing information available
No pricing information available
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Reviews
160 reviews so far
65%
saidit'sworth it
49%
saiditworked well
16%
saidit'sa big hassle

Have you used Dulcolax (Bisacodyl)?

Leave a review
125 reviews so far
66%
saidit'sworth it
49%
saiditworked well
13%
saidit'sa big hassle

Have you used Colace (docusate)?

Leave a review
Side effects
The Dulcolax (Bisacodyl) FDA package insert doesn’t have numbers about how common side effects are.
The Colace (docusate) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • 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
  • Complete or partial blockage of intestines
See more detailed risks and warnings