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.
Find lowest prices
Powered by GoodRxSave on your next prescription. Be sure you’re getting the lowest price for your medication, even if you have insurance.
Coupons for Lactulose
Best available price for 900 (10g/15ml) oral solutions of lactulose
No pricing data for this drug at this filter setting. Try searching onGoodRx
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
Reviews for Generlac (lactulose)
Not enough review data. Review it!
of people (All ages) say Generlac (lactulose) 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 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
    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