Compare Fibercon vs. Metamucil

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

Fibercon
(Calcium Polycarbophil)

Metamucil
(Psyllium)

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.Helps get things moving. The natural psyllium fiber in Metamucil (Psyllium) does more than relieve constipation. It lowers cholesterol, keeps blood sugar levels healthy, and makes you feel less hungry between meals.
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Reviews & ratings
Button Group. All currently active
Button Group. All currently active
3.9625Fibercon
Reviews for Fibercon (Calcium Polycarbophil)
45%
of people say Fibercon (Calcium Polycarbophil) is worth it
28%
say it works well
21%
say it's a big hassle
Reviews for Metamucil (Psyllium)
71%
+26% vs. Fibercon (Calcium Polycarbophil)
45%
+17% vs. Fibercon (Calcium Polycarbophil)
10%
+11% vs. Fibercon (Calcium Polycarbophil)
Side effects
FiberconMetamucil

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

FDA side effect reports for Fibercon »

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

FDA side effect reports for Metamucil »
How it works
FiberconMetamucil
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.Metamucil (Psyllium) 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
FiberconMetamucil
Laxative
Bulk-producing
Over-the-counter
Laxative
Bulk-producing
Over-the-counter
Available as
FiberconMetamucil
  • Pill
  • Liquid
Used for (click to learn more)
FiberconMetamucil
Risk factors for serious side effects
FiberconMetamucil
  • 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 »
  • Age 60 or older
  • Malignancy
  • Other condition that causes blockage or narrowing of bowel
  • Taking medications that cause constipation
  • Sensitivity to psyllium
Detailed Metamucil (Psyllium) risks & warnings »
Pregnancy category
FiberconMetamucil
NFDA pregnancy category (Unknown)

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.

See the FDA package insert
NFDA pregnancy category (Unknown)

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.

See the FDA package insert
Alcohol
No specific alcohol-related info.No specific alcohol-related info.
Food
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
  • It has multiple health benefits, good to control your hunger between meals, improves your blood sugar and lowers cholesterol levels.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Kidneys and liver
No specific kidneys and liver-related info.No specific kidneys and liver-related info.
Sex
No specific sex-related info.No specific sex-related info.
Sleep
No specific sleep-related info.No specific sleep-related info.
Weight
No specific weight-related info.No specific weight-related info.
Upsides and benefits
FiberconMetamucil
  • 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.
  • Psyllium is the most recommended brand of natural fiber laxative
  • Some people feel that taking Psyllium is a hassle, but most think it's worth it.
  • It has multiple health benefits, good to control your hunger between meals, improves your blood sugar and lowers cholesterol levels.
  • Studies show it works better than a stool softener for constipation.
Downsides and risks
FiberconMetamucil
  • 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.
  • Can cause heartburn, gas, and belly cramps.
  • Not the best choice for people who have swallowing problems or aren't able to drink lots of liquids.
  • You may have to take Psyllium daily for 1-3 days to see full effects.
  • If you don't take it with enough liquid, it could swell, block your throat and cause choking.
  • Psyllium contains psyllium. Don't take if you have an allergy to psyllium from breathing it in or swallowing it.
  • Can cause gas and mild belly cramps.
  • Not the best choice for people who have swallowing problems or aren't able to drink lots of liquids.
Tips from our pharmacists for people taking the medication
FiberconMetamucil
  • 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.
  • Psyllium works in about 12-72 hours for constipation.
  • It's important to take each dose with at least 8 ounces (a full glass) of water or other liquid (not hot liquids).
  • Mix powder well and drink right away up to 3 times a day (build up to this slowly), but not for more than one week.
  • Don't take Psyllium within 2 hours before or after taking other medicines. It may interact and affect how they work.
  • If you take Psyllium then have chest pain, vomiting, trouble breathing or swallowing, get medical help immediately.
  • Ask your doctor before taking Psyllium if you have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
  • Ask your doctor about giving Psyllium to anyone younger than 12 years.
  • Stop taking Psyllium and call your doctor if you have pain, swelling or bulging in your belly, rectal bleeding or have not had a bowel movement after taking.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Learn more
More about FiberconSide effectsReviews & ratingsAlternativesFDA package insert
More about MetamucilSide effectsReviews & ratingsAlternativesFDA package insert