Compare Dulcolax vs. Benefiber

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

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Dulcolax (Bisacodyl)

Over-the-counter

Benefiber

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
Supplements fiber and relieves constipation.

Benefiber is an excellent fiber supplement. It's easy to use and doesn't clump up like other supplements.

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.
  • Research shows soluble fibers like Benefiber are useful for people who don’t meet daily fiber recommendations.
  • Benefiber completely dissolves in liquids and doesn’t have a gritty texture like other similar fiber supplements.
  • Comes in multiple forms, including chewables, powders, and caplets.
  • Should cause less gas and bloating than other fiber supplements.
  • Has multiple health benefits including lower blood sugar and cholesterol levels.
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.
  • If you have a gluten intolerance, celiac disease, are pregnant, or are nursing, check with your doctor before taking Benefiber.
  • Taking too much Benefiber can cause constipation, gas, and bloating.
  • Benefiber doesn’t bulk up stool as much as insoluble fiber supplements.
  • Some people's bodies can become dependent on fiber supplements.
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Used for
Dosage forms
  • Pill
  • Suppository
  • Liquid
  • Pill
  • Chewable tablet
Price
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

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Side effects
The Dulcolax (Bisacodyl) FDA package insert doesn’t have numbers about how common side effects are.
The Benefiber 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
  • Warnings
    • Pregnant
    • Nursing
    • Kidney stones
  • Fiber intake
  • Medication interactions
See more detailed risks and warnings