Medical Editor: John P. Cunha, DO, FACOEP
MiraLAX (polyethylene glycol 3350) is used as a laxative to treat occasional constipation or irregular bowel movements. MiraLAX is available over-the-counter and in generic form. Common side effects of MiraLAX include:diarrhea, bleeding from your rectum, blood in your stools, or severe and worsening stomach pain, cramping, or bloating.
The usual dose of MiraLAX is 17 grams (about 1 heaping tablespoon) of powder per day (or as directed by physician) in 4 to 8 ounces of water. Other drugs may interact with MiraLAX. Tell your doctor all prescription and over-the-counter medications and supplements you use. During pregnancy, MiraLAX should be used only when prescribed. It is not known if this drug passes into breast milk. Consult your doctor before breast-feeding.
Our MiraLAX (polyethylene glycol 3350) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop taking polyethylene glycol 3350 and call your doctor at once if you have any of these serious side effects:
- severe or bloody diarrhea;
- bleeding from your rectum;
- blood in your stools; or
- severe and worsening stomach pain, cramping, or bloating.
Less serious side effects may include:
- bloating, gas, upset stomach;
- dizziness; or
- increased sweating.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for MiraLAX (Polyethylene Glycol 3350 - OTC)
Do not use if you are allergic to polyethylene glycol
Do not use if you have kidney disease, except under the advice and supervision of a doctor
Ask a doctor before use if you have:
- nausea, vomiting or abdominal pain
- a sudden change in bowel habits that lasts over 2 weeks
- irritable bowel syndrome
Ask a doctor of pharmacist before use if you are taking a prescription drug
When using this product you may have loose, watery, more frequent stools
Stop use and ask a doctor if:
- you have rectal bleeding or you nausea, bloating or cramping or abdominal pain gets worse. These may be signs of a serious condition.
- you get diarrhea
- you need to use a laxative for longer than 1 week
Read the entire FDA prescribing information for MiraLAX (Polyethylene Glycol 3350 - OTC)
© MiraLAX Patient Information is supplied by Cerner Multum, Inc. and MiraLAX Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.