Compare Fibercon vs. Magnesium Citrate

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

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.

3.0/ 5 average rating with 80 reviewsforFibercon
Treats constipation.

Citrate Of Magnesia (Magnesium Citrate) works well if you need to really get things moving, but it's not a good medicine to manage chronic constipation.

Upsides
  • 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.
  • Really strong laxative that gets things moving fast.
  • Can also be used to prep your bowel before you go for surgery or colonoscopy. Your doctor will give you specific instructions if you use it this way.
Downsides
  • 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.
  • It doesn't work for everyone and some people feel it's a hassle.
  • Some brands are of Magnesium Citrate are tinted red and can change the color of your stool.
  • Can cause dizziness, weakness, diarrhea, and the feeling that you "have to go right now".
  • Magnesium Citrate contains magnesium which prevents certain medicines from working properly. Make sure you take your dose of Magnesium Citrate at least 2 hours before or after other medicines.
  • You can't take it for more than a week or so.
Used for
Dosage forms
  • Pill
  • Liquid
No pricing information available
No pricing information available
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Reviews
80 reviews so far
45%
saidit'sworth it
28%
saiditworked well
21%
saidit'sa big hassle

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Side effects
The Fibercon (Calcium Polycarbophil) FDA package insert doesn’t have numbers about how common side effects are.
The Citrate Of Magnesia (Magnesium Citrate) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Drug interactions
    • Taking with calcium supplements
    • Taking with oral bisphosphonates
  • Bowel blockage
    • Age 60 or older
    • Malignancy
    • Other condition that causes blockage or narrowing of bowel
    • Taking medications that cause constipation
See more detailed risks and warnings
  • Bowel blockage
    • Age 60 or older
    • Malignancy
    • Other condition that causes blockage or narrowing of bowel
    • Taking medications that cause constipation
  • Electrolyte imbalance
    • Taking with medications that cause electrolyte imbalance
    • Age 60 or older
  • Risk to fetus
    • Women of childbearing age
  • Worsening of neuromuscular conditions
    • Taking Citrate Of Magnesia (Magnesium Citrate) if you have kidney disease and neuromuscular disease
    • Taking Citrate Of Magnesia (Magnesium Citrate) if you have neuromuscular disease
  • High magnesium levels
    • Kidney disease
    • Taking other magnesium-containing medicines or supplements
See more detailed risks and warnings
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Disclaimer: We don't provide medical advice. If you think you might have a medical emergency, call your doctor or 911 immediately.