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MIRALAX vs POLYETHYLENE GLYCOL 3350

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Rating

New
56/100

Pharmacy pays

$1.11 /g
$1.11 /g

Type

RX
RX

Active ingredient

POLYETHYLENE GLYCOL 3350
POLYETHYLENE GLYCOL 3350

Manufacturer

Dosage forms

Powder
Powder

Drug class

Osmotic Laxative
Osmotic Laxative

Boxed warning

None
None

Treats

Constipation
Constipation

Frequently asked questions

Which is cheaper, Miralax or Polyethylene Glycol 3350?

Pharmacies pay about the same to acquire either one — roughly $1.11 per gm, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Miralax and Polyethylene Glycol 3350?

Both Miralax and Polyethylene Glycol 3350 share the active ingredient Polyethylene Glycol 3350.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.