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A 38-year-old member asked:

What is miralax (polyethylene glycol) used for?

1 doctor answer2 doctors weighed in
Dr. Quang Nguyen
Specializes in Endocrinology
Relieve constipation: It is a laxative, use to relieve constipation. It can be found over the counter.

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A 46-year-old member asked:

Can I up my dosage of miralax (polyethylene glycol)?

1 doctor answer1 doctor weighed in
Dr. Charles Cattano
Gastroenterology 39 years experience
Is dose-dependent...: The more MiraLAX (polyethylene glycol) you take the faster it works. As a once over-the-counter dosed laxative you may not see results for 3-4 days, but as a multi-dosed colonoscopy preparation (when used under doctor's advice) expect laxation within hours. As with any laxative however understand its mechanism of action, its risks, & treatment goals & make sure you are not missing obstruction, dysmotility, inflammation
Brooklyn, NY
A 46-year-old male asked:

How long can I take miralax (polyethylene glycol) for?

1 doctor answer2 doctors weighed in
Dr. Liesa Harte
Family Medicine 29 years experience
Miralax (polyethylene glycol): You can take miralax (polyethylene glycol) indefinitely as long as you need it. Best wishes.
A 37-year-old member asked:

What happens if you overdose on miralax (polyethylene glycol)?

1 doctor answer2 doctors weighed in
Dr. Charles Cattano
Gastroenterology 39 years experience
= Colonoscopy prep: Miralax (polyethylene glycol) is essentially a small dose of oral lavage widely prescribed for years in preparation for colonoscopy. The drug is not generally absorbed, so more taken means more of it available to promote bowel evacuation. An "overdose" of MiraLAX (polyethylene glycol) approaches the dose that optimally cleanses the colon for colonoscopy as something called "MiraLAX (polyethylene glycol) prep." don't "od" on your own--see doctor for right dose.
A 31-year-old member asked:

Can you explain how miralax (polyethylene glycol) works?

2 doctor answers2 doctors weighed in
Dr. Andrew Gentry
Gastroenterology 20 years experience
Osmotic laxative: If you remember from science class putting sugar or other dry compound in small amount of water and placing it in lager container of tap water the tap water would cross the plastic bag and dilute the sugar water......Miralax (polyethylene glycol) is an osmotic laxative it prevents water from being absorbed in the gastrointestinal tract thereby getting more water to the anus vice a dry poop.
Durham, NC
A 71-year-old male asked:

Miralax (polyethylene glycol) side affects?

2 doctor answers4 doctors weighed in
Dr. Grace Akoh-Arrey
Pharmacology 16 years experience
Abdominal problems: Miralax (polyethylene glycol) dosed at 17 gm/day( a heaping tablespoon in 4-8 ounces of fluid) max 34gm/day. Some side effects are abdominal pain/bloating, diarrhea, cramping, gas, rash. High doses particularly in elderly can cause excessive diarrhea/ stool frequency which may result in dehydration. Stop use if fecal urgency/incontinence occurs. Do not use for more than 2 weeks except directed by physician.

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Last updated Apr 15, 2018
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