Prescription Drug Coverage

Polyethylene Glycol 3350 Medicare Coverage

You may be able to find Medicare plan options in your area that cover Polyethylene Glycol 3350. Learn more about Polyethylene Glycol 3350 and find Medicare Advantage plans in your area that cover other prescription drugs.
Polyethylene Glycol 3350
Chemical name: Polyethylene Glycol 3350

Typical dosage: 527g of 17g

Typical type: Powder1

Polyethylene Glycol 3350 is a medication used to treat occasional constipation. It is available as a powder to mix in liquid to drink.

Polyethylene Glycol 3350, called PEG, is a medication used to treat occasional constipation and is often used for preparation for a colonoscopy.

PEG causes water retention in your bowels to increase how often you go to the bathroom.

Common side effects of this medication include loose, watery or more frequent stools; stomach pain and cramps; gas, bloating and upset stomach.

How much does Polyethylene Glycol 3350 cost with Medicare?

Polyethylene Glycol 3350 coverage and costs may vary based on the specific plan you have, as well as what coverage stage you're in.

Contact your plan carrier or consult your plan formulary for more cost information.

Does Medicare cover Polyethylene Glycol 3350?

According to GoodRx, Medicare Advantage plans and Medicare Part D plans didn't typically cover Polyethylene Glycol 3350 in 2023.1

  • Medicare Advantage plans or Part D plans that cover prescription drugs include copay amounts that can range widely from one plan to another. Plan members may also be responsible for meeting a deductible before the plan’s drug coverage kicks in.

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). 89% of 2024 Medicare Advantage plans include prescription drug coverage.2

  • Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover prescription drugs. We represent carriers such as Humana, UnitedHealthcare®, Anthem Blue Cross and Blue Shield, Aetna, Cigna Healthcare, Wellcare, or Kaiser Permanente.

You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit

Additional information

Unless your doctor tells you to, do not use this medication for more than 1 week.

The purpose of PEG is to help relieve the signs and symptoms of constipation, but call your doctor if you have very bad dizziness or diarrhea, bleeding from the rectum or rectal pain. Do not use other stool softeners or laxatives unless instructed to by your doctor.

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This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.

Written by Hayden Gharibyar, Pharm.D.

1 GoodRx. Polyethylene Glycol 3350. Retrieved November 2023, from

2 Freed M, et al. (Nov 15, 2023). Medicare Advantage 2024 Spotlight: First Look. Kaiser Family Foundation.