Compare Magnesium Citrate vs. Senna-S

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

Citrate Of Magnesia
(Magnesium Citrate)

Senna-S
(Docusate / Senna)

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.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.
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Reviews & ratings
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Reviews for Senna-S (Docusate / Senna)
38%
62% vs. Citrate Of Magnesia (Magnesium Citrate)
29%
71% vs. Citrate Of Magnesia (Magnesium Citrate)
21%
21% vs. Citrate Of Magnesia (Magnesium Citrate)
Side effects
Magnesium CitrateSenna-S

We haven’t found good data for Magnesium Citrate side effects.

FDA side effect reports for Magnesium Citrate »

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

FDA side effect reports for Senna-S »
How it works
Magnesium CitrateSenna-S
Citrate Of Magnesia (Magnesium Citrate) is an osmotic and stimulant laxative. It uses osmosis to keep more water in your intestine, which softens your stool and makes it easier to pass. It also causes waves of contractions (peristalsis) in your intestine muscles to push stool through.Senna-S (Docusate / Senna) is a combination medicine. Docusate is a stool softener, and Senna is a stimulant laxative. These two ingredients work together to make stools easier to pass.
Type of medication
Magnesium CitrateSenna-S
LaxativePrescription or OTC
Laxative
Stool softener
Laxative
Stimulant
Over-the-counter
Available as
Magnesium CitrateSenna-S
  • Liquid
  • Pill
Used for (click to learn more)
Magnesium CitrateSenna-S
Risk factors for serious side effects
Magnesium CitrateSenna-S
  • Age 60 or older
  • Malignancy
  • Other condition that causes blockage or narrowing of bowel
  • Taking medications that cause constipation
  • Taking with medications that cause electrolyte imbalance
  • Age 60 or older
  • Women of childbearing age
  • 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
  • Kidney disease
  • Taking other magnesium-containing medicines or supplements
Detailed Citrate Of Magnesia (Magnesium Citrate) risks & warnings »
  • Age 60 or older
  • Malignancy
  • Other condition that causes blockage or narrowing of bowel
  • Taking medications that cause constipation
  • Age 60 or older
  • Taking medications that cause constipation
  • People who can't walk or move well (immobility)
  • Women of childbearing age
  • Allergy or sensitivity to aloe (cross-allergic reaction)
Detailed Senna-S (Docusate / Senna) risks & warnings »
Pregnancy category
Magnesium CitrateSenna-S
Alcohol
No specific alcohol-related info.No specific alcohol-related info.
Food
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Kidneys and liver
  • Ask your doctor before taking Magnesium Citrate if you have kidney disease, are on a limited magnesium or sodium diet, have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
  • Magnesium can build up in your blood if you have kidney problems. High magnesium levels can be dangerous and affect your heart, cause weakness and lower your calcium levels. Don't take Citrate Of Magnesia (Magnesium Citrate) if you have problems with your kidneys or are taking other magnesium-containing medicines. or supplements..
No specific kidneys and liver-related info.
Sex
No specific sex-related info.No specific sex-related info.
Sleep
No specific sleep-related info.No specific sleep-related info.
Weight
No specific weight-related info.No specific weight-related info.
Upsides and benefits
Magnesium CitrateSenna-S
  • 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.
  • 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.
Downsides and risks
Magnesium CitrateSenna-S
  • 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.
  • 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".
Tips from our pharmacists for people taking the medication
Magnesium CitrateSenna-S
  • Magnesium Citrate starts working in 30 minutes to 6 hours.
  • Works fast, so don't take it too close to bedtime.
  • The dose is different for adults and children so check the label and ask your doctor about giving to anyone younger than 6 years.
  • It tastes better if you chill the bottle before you take it. Make sure you drink 8 ounces (a full glass) of water or other liquid after each dose.
  • Ask your doctor before taking Magnesium Citrate if you have kidney disease, are on a limited magnesium or sodium diet, have stomach pain, nausea, vomiting or had sudden changes in your stool for more than 2 weeks.
  • Stop taking Magnesium Citrate and call your doctor if you have pain, swelling or bulging in your belly, rectal bleeding, or haven't had a bowel movement after taking.
  • For short-term use. Don't use it for more than one week.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
  • Docusate/Senna is a combination of a laxative and stool softener. Together they work to relieve constipation better than each medicine alone.
  • Best to take at bedtime or as your doctor has prescribed, but not for more than one week. It works in about 6-12 hours.
  • Ask your doctor about giving Docusate/Senna to anyone younger than 2 years.
  • Don't use if you're taking mineral oil for constipation. Ask your doctor first.
  • Ask your doctor before taking Docusate/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 Magnesium CitrateSide effectsReviews & ratingsAlternativesFDA package insert
More about Senna-SSide effectsReviews & ratingsAlternativesFDA package insert