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Polyethylene Glycol 3350

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pol ee eth' i leen glye' col

Brand name(s): MiraLax
Other name(s): PEG 3350

Contents of this page:

Why is this medication prescribed?

Polyethylene glycol 3350 is used to treat occasional constipation. Polyethylene glycol 3350 is in a class of medications called osmotic laxatives. It works by causing water to be retained with the stool. This increases the number of bowel movements and softens the stool so it is easier to pass.

How should this medicine be used?

Polyethylene glycol 3350 comes as a powder to be mixed with a liquid and taken by mouth. It is usually taken once a day as needed for up to 2 weeks. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take polyethylene glycol 3350 exactly as directed.

Polyethylene glycol 3350 may be habit-forming. Do not take a larger dose, take it more often, or take it for a longer period of time than your doctor tells you to.

It may take 2 to 4 days for polyethylene glycol 3350 to produce a bowel movement.

To use the powder, follow these steps:

Other uses for this medicine

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

Before taking polyethylene glycol 3350,

What special dietary instructions should I follow?

Eat a well-balanced diet that includes fiber-rich foods, such as unprocessed bran, whole-grain bread, and fresh fruits and vegetables. Drink plenty of fluids and exercise regularly.

What should I do if I forget a dose?

This medication is usually taken as needed.

What side effects can this medication cause?

Polyethylene glycol 3350 may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

Some side effects can be serious. The following symptoms are uncommon, but if you experience either of them, call your doctor immediately:

Polyethylene glycol 3350 may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

What storage conditions are needed for this medicine?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

In case of emergency/overdose

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

Symptoms of overdose may include:

What other information should I know?

Keep all appointments with your doctor.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

Last Revised - 01/01/2004


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The MedMaster™ Patient Drug Information database provides information copyrighted by the American Society of Health-System Pharmacists, Inc., Bethesda, Maryland Copyright© 2004. All Rights Reserved.