Compare Lactulose vs. Fibercon

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

Generlac
(Lactulose)

Fibercon
(Calcium Polycarbophil)

Coming soon.Helps get things moving. Fibercon (Calcium Polycarbophil) is a natural fiber laxative that's safe enough to take during pregnancy. Just make sure you take it with plenty of liquid.
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Reviews & ratings
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Have you used Generlac (Lactulose)?
Worth itNot sureNot worth it
Reviews for Fibercon (Calcium Polycarbophil)
45%
-55% worse vs. Generlac (Lactulose)
28%
-72% worse vs. Generlac (Lactulose)
21%
-21% worse vs. Generlac (Lactulose)
Have you used Fibercon (Calcium Polycarbophil)?
Worth itNot sureNot worth it
Side effects
LactuloseFibercon

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

FDA side effect reports for Lactulose »

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

FDA side effect reports for Fibercon »
How it works
LactuloseFibercon
Coming soon.Fibercon (Calcium Polycarbophil) is a fiber-based laxative. It adds bulk and moisture to your intestine, which softens stool and makes it easier to pass.
Type of medication
LactuloseFibercon
Over-the-counter
Available as
LactuloseFibercon
  • Liquid
  • Pill
Used for
LactuloseFibercon
  • Constipation Hepatic Encephalopathy Treatment And Prophylaxis
Risk factors for serious side effects
LactuloseFibercon
Coming soon.
  • Taking with calcium supplements
  • Taking with oral bisphosphonates
  • Age 60 or older
  • Malignancy
  • Other condition that causes blockage or narrowing of bowel
  • Taking medications that cause constipation
Detailed Fibercon (Calcium Polycarbophil) risks & warnings »
Pregnancy

Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

The FDA hasn’t classified this medicine’s effects on unborn babies. Talk with your doctor about this medicine if you’re pregnant or planning on it.

Food
LactuloseFibercon
No food related info.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Pain
LactuloseFibercon
No pain related info.
  • If you take Fibercon then have chest pain, vomiting, trouble breathing or swallowing, get medical help immediately.
  • Ask your doctor before taking Fibercon if you have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
Weight
LactuloseFibercon
No weight related info.
  • Less gas and bloating compared to psyllium laxative products.
Upsides and benefits
LactuloseFibercon
Coming soon
  • Some people felt Fibercon was a hassle but still worth it.
  • It's safe to use short-term during pregnancy and breast-feeding as long as you take it with plenty of liquid, but you should still check with your baby doctor first.
  • Less gas and bloating compared to psyllium laxative products.
Downsides and risks
LactuloseFibercon
Coming soon
  • You may have to take Fibercon daily for 1-3 days to see full effects.
  • If you don't take it with enough liquid, it could swell and block your throat and cause choking.
  • Not the best choice for people who have swallowing problems or aren't able to drink lots of liquids.
  • Can cause heartburn, gas, and belly cramps.
Tips from our pharmacists for people taking the medication
LactuloseFibercon
Coming soon
  • It's important to take each dose with at least 8 ounces (a full glass) of water or other liquid. Works in about 12-72 hours.
  • Don't take more than 8 caplets in a 24 hour period without asking your doctor first and not for more than one week.
  • Don't take Fibercon within 2 hours before or after taking other medicines. It may interact and affect how they work.
  • If you take Fibercon then have chest pain, vomiting, trouble breathing or swallowing, get medical help immediately.
  • Ask your doctor before taking Fibercon if you have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
  • Ask your doctor about giving Fibercon to anyone younger than 12 years.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Learn more
More about LactuloseSide effectsReviews & ratingsFDA package insert
Have you used Generlac (Lactulose)?
Worth itNot sureNot worth it
More about FiberconSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Fibercon (Calcium Polycarbophil)?
Worth itNot sureNot worth it