Does Miralax (polyethylene glycol) cause side effects?

Miralax (polyethylene glycol) is an osmotic laxative used to treat occasional constipation and for bowel preparation prior to procedures.

Miralax works by retaining water in the stool, resulting in softer stools and more frequent bowel movements. Miralax does not affect glucose and electrolytes in the body.

Common side effects of Miralax include

Serious side effects of Miralax include

No drug interactions have been established with Miralax.

It is unknown if Miralax will harm a fetus. It is unknown if Miralax enters breast milk. Consult your doctor before breastfeeding.

What are the important side effects of Miralax (polyethylene glycol)?

Side effects of polyethylene glycol are

Patients with have kidney disease should consult with their doctor before using this product.

Miralax (polyethylene glycol) side effects list for healthcare professionals

Allergy alert

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

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

If pregnant or breastfeeding, ask a health professional before use.

Keep out of the reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

What drugs interact with Miralax (polyethylene glycol)?

No information provided.

Treatment & Diagnosis

Medications & Supplements

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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Medically Reviewed on 7/14/2020
FDA Prescribing Information

Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.