Metamucil
(psyllium)
●●●●●
3.8/ 5 average rating with 454 reviewsforMetamucil
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Helps get things moving.
Skip Upsides & Downsides section. Skip to side effects section.
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Our bottom line
Metamucil (psyllium) is a natural fiber that is cheap and effective at relieving constipation.
Quick facts about Metamucil
- Drug class: Gastrointestinal
- Rx status: Over-the-counter
- Generic status: Lower-cost generic available (psyllium)
Upsides
- Inexpensive and available over-the-counter.
- Made from a natural product.
- Using Metamucil (psyllium) has multiple benefits, including relieving constipation, lowering cholesterol, and making you feel full.
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What to expect from Metamucil, on one page
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454Downsides
- Metamucil (psyllium) can take up to 72 hours to relieve constipation.
- Not the best choice for people who have swallowing problems or can't drink lots of liquids.
- Metamucil (psyllium) can cause gas and stomach cramps.
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What to expect from Metamucil, on one page
Download Fact SheetHow it works
Metamucil (psyllium) is a fiber-based laxative. It adds bulk and moisture to your stool, which makes it easier to pass.
Quick facts about Metamucil
- Drug class: Gastrointestinal
- Rx status: Over-the-counter
- Generic status: Lower-cost generic available (psyllium)
Used for
Dosage forms
- Pill
- Powder
Prices and coupons
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See more prices and coupons in your areaWhat to expect when you take Metamucil (psyllium) for Constipation
Skip what to expect section. Skip to side effects section.- First few hoursHoursFirst few daysDaysFirst few weeksWeeksFirst few monthsMonths
- Effectiveness
- Starts to kick inFull effects
- First few hoursHoursFirst few daysDaysFirst few weeksWeeksFirst few monthsMonths
- Possible side effects
- Gas
- Diarrhea
- Abdominal cramps
- Changes in bowel sounds
- Changes in bowel movements
- Blockage of throat
Side effect rates for Metamucil (psyllium)
Risks and Warnings for Metamucil (psyllium)
Skip risks section. Skip to common concerns section.- Higher risk if:
- › Age 60 or older
- › Cancer
- › Taking medicines that cause constipation
- › Limited liquid intake
In rare cases, Metamucil (psyllium) can block your small or large intestine. Stop taking Metamucil (psyllium) and tell your doctor right away if you have nausea, vomiting, pain or bloating that doesn't go away, rectal bleeding, or constipation that lasts more than 7 days.