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.

Our bottom line

Metamucil (psyllium) is a natural fiber that is cheap and effective at relieving constipation.

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  • Lowest price with coupon
    $7.46
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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People’s experience with Metamucil

454reviews so far. What do you think?

Downsides

  • 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

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How 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
People’s experience with Metamucil

454reviews so far. What do you think?

Prices and coupons

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What to expect when you take Metamucil (psyllium) for Constipation

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  • Effectiveness
  • Starts to kick in
    Full effects
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  • Possible side effects
  • Gas
  • Diarrhea
  • Abdominal cramps
  • Changes in bowel sounds
  • Changes in bowel movements
  • Blockage of throat
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Side effect rates for Metamucil (psyllium)

Risks and Warnings for Metamucil (psyllium)

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    • 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.