Compare Imodium vs. Maalox

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

Imodium
(loperamide)

Maalox
(aluminum / magnesium / simethicone)

Treats diarrhea. One day is too many days to have diarrhea. Having Imodium (Loperamide) on hand to relieve your symptoms can be a life-saver.Relieves heartburn and indigestion. Maalox (aluminum / magnesium / simethicone) gives quick relief for heartburn, gas, and bloating, but it may not be as effective or last as long as other antacids.
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Coupons for Imodium
Best available price for 240 (2mg) capsules of imodium
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
5.75Imodium
Reviews for Imodium
89%
of people (All ages) say Imodium is worth it
65%
say it works well
6%
say it's a big hassle
285 reviews
Have you used Imodium (loperamide)?
Worth itNot sureNot worth it
Reviews for Maalox
69%
+20% better vs. Imodium
30%
+35% better vs. Imodium
9%
+3% better vs. Imodium
213 reviews
Have you used Maalox (aluminum / magnesium / simethicone)?
Worth itNot sureNot worth it
Side effects
ImodiumMaalox
  • Constipation 3%
  • Nausea 3%
  • Abdominal cramp 3%
More Imodium side effects »

The Maalox FDA package insert doesn’t have numbers about how common side effects are.

More about Maalox side effects »
How it works
ImodiumMaalox
Imodium (Loperamide) is an antidiarrheal medicine. It's actually an opioid related to morphine, though it doesn't affect the brain like opioid pain medicines do. Instead, it works directly on muscles in your large intestine to stop contractions and increase the time it takes for stool to move through. The result is less diarrhea and more formed stool.Maalox (aluminum / magnesium / simethicone) is a combination medicine for heartburn and indigestion. Aluminum and magnesium are antacids that treat heartburn and indigestion. Simethicone relieves gas and bloating.
Type of medication
ImodiumMaalox
Over-the-counterOver-the-counter
Available as
ImodiumMaalox
  • Pill
  • Chewable tablet
  • Liquid
  • Chewable tablet
  • Liquid
Used for
ImodiumMaalox
Risk factors for serious side effects
ImodiumMaalox
  • Allergy to loperamide
  • Taking with alcohol
  • Taking other medicines that make you less alert
  • Current liver problems
  • Taking HIV medicines
Detailed Imodium (loperamide) risks & warnings »
  • Kidney problems
  • Taking more than the recommended daily maximum
Detailed Maalox (aluminum / magnesium / simethicone) risks & warnings »
Pregnancy

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Food
ImodiumMaalox
No food related info.
  • Talk to your doctor or pharmacist about foods to avoid that can help prevent heartburn.
Kidneys and liver
ImodiumMaalox
  • Ask your doctor before taking Imodium if you have a fever, liver problems, mucus in your stool or are taking antibiotics.
  • Maalox (aluminum / magnesium / simethicone) contains aluminum and magnesium that can build up in your kidneys if you have kidney problems which can be dangerous. Talk to your doctor or pharmacist before taking Maalox (aluminum / magnesium / simethicone) to see if it is right for you. Don't take more than the maximum amount per day as shown on the label.
Pain
ImodiumMaalox
  • Do not use if you have diarrhea with a high fever, blood in your stool, pain, swelling or bulging in your belly. People taking HIV medicine together with Imodium (Loperamide) can have a serious intestinal problem called toxic megacolon. Call your doctor or get medical care right away if you develop these symptoms or your diarrhea gets worse after 2 days.
No pain related info.
Weight
ImodiumMaalox
  • The correct dose of Imodium may be different depending on age. Use the dosing chart to find the right amount of medicine based on age and weight.
No weight related info.
Upsides and benefits
ImodiumMaalox
  • Most people who take Imodium feel there's no hassle and it's definitely worth it!
  • Non-habit forming and available over-the-counter.
  • It comes in caplets, liquid, and chewable tablets so you can use it anywhere you need it.
  • Imodium is used for short-term, chronic and traveler's diarrhea. It's also used for people who have diarrhea caused by cancer or certain medicines that treat cancer.
  • Works quickly.
  • Inexpensive and available over-the-counter.
  • Is one of the first choice medications for heartburn relief if you are pregnant.
Downsides and risks
ImodiumMaalox
  • Imodium only treats your diarrhea symptoms. Diarrhea may be caused by a number of conditions and will need specific treatment that deals with the underlying issue.
  • Studies in people taking Imodium for chronic diarrhea showed if the maximum number of doses didn't relieve symptoms in 10 days, then it probably won't work for that condition. You can talk to your doctor about other treatment options.
  • Doesn't last very long. Talk to your doctor or pharmacist if you need longer lasting relief.
  • Is not a good option if you have frequent symptoms (more than 2 times a week). Talk to your doctor or pharmacist about stronger medications.
Tips from our pharmacists for people taking the medication
ImodiumMaalox
  • Try to drink plenty of clear liquids. Having diarrhea can make you dehydrated.
  • The correct dose of Imodium may be different depending on age. Use the dosing chart to find the right amount of medicine based on age and weight.
  • Shake Imodium liquid well before using. Use dosing cup that comes with bottle to get the best dose.
  • Imodium lowers your ability to focus, think, and react. Avoid activities that require you to be alert, such as driving a car or operating machinery, until you know how this medication affects you.
  • Check with your baby doctor before using if you're breastfeeding.
  • Ask your doctor before taking Imodium if you have a fever, liver problems, mucus in your stool or are taking antibiotics.
  • Don't use if you have blood in your stool or it's dark or black in color.
  • Stop using Imodium and call your doctor if you have pain, swelling or bulging in your belly or your symptoms get worse after 2 days. This could be serious.
  • Starts working within minutes, and lasts for 1-2 hours.
  • If you are using the liquid product, shake well before using.
  • Don't take more than the recommended amount per day on the package. If you need to take this for more than 2 weeks, talk to your doctor.
  • People on a magnesium-restricted diet may need to avoid Maalox. Ask your doctor.
  • Talk to your doctor or pharmacist about foods to avoid that can help prevent heartburn.
  • Eating smaller portion sizes and not eating 3 hours before bedtime can help prevent heartburn.
Learn more
More about ImodiumSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Imodium (loperamide)?
Worth itNot sureNot worth it
More about MaaloxSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Maalox (aluminum / magnesium / simethicone)?
Worth itNot sureNot worth it