Compare Senna-S vs. Metamucil

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

Metamucil (psyllium)

Over-the-counter
Helps get things moving and softens things up.

Senna and docusate join forces to create Senna-S (Docusate / Senna), a vegetable-based laxative that gently relieves constipation.

3.3/ 5 average rating with 95 reviewsforSenna-S
Helps get things moving.

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

3.8/ 5 average rating with 454 reviewsforMetamucil
Upsides
  • The combination of a laxative and stool softener might work better for people with constipation caused by medicines.
  • The laxative in Docusate/Senna was used over 3,500 years ago, so it's been around for a while.
  • Docusate/Senna is clinically proven to relieve constipation from a variety of causes.
  • One of the few laxative/stool-softener combinations that can be given to children 2 and older.
  • It may not work for everyone, but people felt it was worth the hassle.
  • 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.
Downsides
  • Most people felt that it's not the most effective laxative out there, but they could deal with the hassle and it worked pretty well.
  • Docusate/Senna can cause cramping or the feeling that you "have to go right now".
  • 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.
Used for
Dosage forms
  • Pill
  • Pill
  • Powder
No pricing information available
No pricing information available
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Reviews
95 reviews so far
39%
saidit'sworth it
29%
saiditworked well
22%
saidit'sa big hassle

Have you used Senna-S (Docusate / Senna)?

Leave a review
454 reviews so far
71%
saidit'sworth it
45%
saiditworked well
10%
saidit'sa big hassle

Have you used Metamucil (psyllium)?

Leave a review
Side effects
The Senna-S (Docusate / Senna) FDA package insert doesn’t have numbers about how common side effects are.
The Metamucil (psyllium) FDA package insert doesn’t have numbers about how common side effects are.
Risks and risk factors
  • Bowel blockage
    • Age 60 or older
    • Malignancy
    • Other condition that causes blockage or narrowing of bowel
    • Taking medications that cause constipation
  • Laxative dependence
    • Age 60 or older
    • Taking medications that cause constipation
    • People who can't walk or move well (immobility)
  • Risk to fetus
    • Women of childbearing age
  • Allergic reactions
    • Allergy or sensitivity to aloe (cross-allergic reaction)
See more detailed risks and warnings
  • Blockage of small or large intestine
    • Age 60 or older
    • Cancer
    • Taking medicines that cause constipation
    • Limited liquid intake
  • Choking
    • Limited liquid intake
    • Swallowing problems
  • Serious allergic reaction
    • Hypersensitivity to psyllium
See more detailed risks and warnings