Over-the-counterLower-cost generic available

Miralax

(Polyethylene Glycol)

  • Liquid
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Helps get things moving.

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Over-the-counterLower-cost generic available

Our pharmacists’ bottom line

Miralax (Polyethylene Glycol) provides effective relief of constipation without "cramping" your style.

Worth it?Is it worth it?
Works well?Does it work?
Hassle?Is it a hassle?
  • Miralax is the most recommended laxative by pharmacists and doctors.
  • Most people felt it was worth the hassle.
  • It's gluten and sugar free.
  • It causes little to no cramping, bloating, gas, or feelings like you "have to go right now" compared to some other medicines to treat constipation.
  • Works differently than other over-the-counter laxatives so it's a great alternative if other medicines haven't worked.
  • You have to dissolve Miralax in a beverage and drink it versus taking a pill.
  • It's not for children 16 years or younger.
  • Miralax doesn't work overnight. It can take up to 2-4 days to have a bowel movement.
  • It's not recommended that you take it for more than a week, so it you haven't had any success, you'll need to call your doctor for other laxative options.

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Side effects for Miralax (Polyethylene Glycol)

Manufacturers don’t say how common these side effects are

  • Abdominal bloating
  • Allergic reactions
  • Cramping
  • Diarrhea
  • Nausea
  • Passing gas

What to expect when you take Miralax (Polyethylene Glycol)

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Tips from our pharmacists
  • Dissolve Miralax powder in 4 to 8 ounces of water, juice or other drink (cold or hot) once a day.
  • Works in about 1 to 3 days. Don't use for more than 1 week.
  • Miralax is available in four different size dose bottles. It also come in pre-measured single-dose packets to make dosing easier or if you travel.
  • Ask your doctor about giving it to anyone younger than 17 years.
  • Doesn't cause as much bloating, cramping or feelings like you "have to go right now" as other medicines to treat constipation.
  • Ask your doctor before you take Miralax if you have nausea or vomiting, irritable bowel syndrome (IBS), kidney disease, or sudden changes in your stool for more than 2 weeks.
  • Stop using Miralax and call your doctor if you have pain, cramping, swelling or bulging in your belly, diarrhea, rectal bleeding or find you need to use for more than 1 week.
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.

Risks and Warnings for Miralax (Polyethylene Glycol)

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    • Higher risk if:
    • Taking with medications that cause electrolyte imbalance
    • Age 60 or older

    Taking too much Miralax (Polyethylene Glycol) or taking it for too long can cause changes in your electrolytes. Electrolytes help your body function properly. Make sure you take Miralax (Polyethylene Glycol) as directed on the product label or by your doctor or pharmacist.

Means that some groups have a high risk of experiencing this side effect

Tips from pharmacists and people taking Miralax (Polyethylene Glycol)

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The FDA category for this medication is C. It is advised that you: Weigh risks vs. benefits
Pregnancy
Food
  • Tips from our pharmacists
  • Talk to you doctor about eating certain foods and getting more exercise to help prevent your constipation.
Kidneys & liver
  • Tips from our pharmacists
  • Ask your doctor before you take Miralax if you have nausea or vomiting, irritable bowel syndrome (IBS), kidney disease, or sudden changes in your stool for more than 2 weeks.