Compare Lactulose vs. Senna

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

Generlac
(lactulose)

Senokot
(senna)

Coming soon.Helps get things moving. Senokot (Senna) is gentle and effective, but it may be weaker than other laxatives.
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Coupons for Lactulose
Best available price for 900 (10g/15ml) oral solutions of lactulose
Coupons for Senna
Best available price for 60 (8.6mg) tablets of senna
Reviews & ratings
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Have you used Generlac (lactulose)?
Worth itNot sureNot worth it
Reviews for Senna
58%
+42% better vs. Lactulose
35%
+65% better vs. Lactulose
10%
+10% better vs. Lactulose
Have you used Senokot (senna)?
Worth itNot sureNot worth it
Side effects
LactuloseSenna

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

FDA side effect reports for Lactulose »

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

FDA side effect reports for Senna »
How it works
LactuloseSenna
Coming soon.Senokot (Senna) is a plant-derived stimulant laxative. It causes waves of contractions (peristalsis) in your intestine muscles to push stool through. It also makes stool more watery.
Type of medication
LactuloseSenna
Over-the-counter
Available as
LactuloseSenna
  • Liquid
  • Pill
Used for
LactuloseSenna
  • Constipation Hepatic Encephalopathy Treatment And Prophylaxis
Risk factors for serious side effects
LactuloseSenna
    Coming soon.
    • Age 60 or greater
    • Malignancy
    • Other condition that causes blockage or narrowing of bowel
    • Age 60 or older
    • Taking medications that cause constipation
    Detailed Senokot (senna) risks & warnings »
    Pregnancy

    Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

    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.

    Food
    LactuloseSenna
    No food related info.
    • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
    Pain
    LactuloseSenna
    No pain related info.
    • Ask your doctor before taking Senna if you have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
    Upsides and benefits
    LactuloseSenna
    Coming soon
    • Senna was used over 3,500 years ago, so it's been around for a while.
    • It's clinically proven to relieve constipation from a variety of causes.
    • One of the few laxatives that can be given to children 2 and older.
    • It may not work for everyone, but people felt it was worth the hassle.
    Downsides and risks
    LactuloseSenna
    Coming soon
    • It may be gentle, but it's not the strongest laxative for constipation.
    • Senna can cause cramping or the feeling that you "have to go right now".
    Tips from our pharmacists for people taking the medication
    LactuloseSenna
    Coming soon
    • It's best to take it at bedtime or as your doctor has prescribed, but not for more than one week. Works in about 6-12 hours.
    • Ask your doctor about giving Senna to anyone younger than 2 years.
    • Ask your doctor before taking Senna if you have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
    • Check with your baby doctor before using or if you're pregnant or breastfeeding.
    • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
    Learn more
    More about LactuloseSide effectsReviews & ratingsFDA package insert
    Have you used Generlac (lactulose)?
    Worth itNot sureNot worth it
    More about SennaSide effectsReviews & ratingsAlternativesFDA package insert
    Have you used Senokot (senna)?
    Worth itNot sureNot worth it