Uses, Dosage & Side Effects: Miralax Powder

Miralax Powder

Generic namePolyethylene glycol 3350
Drug classLaxatives (osmotic laxative)
FormsPowder (mixed with liquid before taking)

MiraLAX is a brand-name, over-the-counter medicine used to treat occasional constipation. It comes as a powder that you mix with a drink before taking it, and you do not need a doctor's prescription to buy it.

Read the full guideUses, dosage, side effects, precautions, and sources, written from the same verified facts.

General information, not medical advice

Your prescriber and the leaflet in your pack know your situation. This page does not.

  • Follow your prescriber and the leaflet
  • Don't start, stop, or change a dose on your own
  • Doses and warnings differ by country and product
Facts checked by a personFull disclaimer

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