polyethylene glycol 3350 (Miralax, Glycolax)

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Jerry R. Balentine, DO, FACEP
    Jerry R. Balentine, DO, FACEP

    Jerry R. Balentine, DO, FACEP

    Dr. Balentine received his undergraduate degree from McDaniel College in Westminster, Maryland. He attended medical school at the Philadelphia College of Osteopathic Medicine graduating in1983. He completed his internship at St. Joseph's Hospital in Philadelphia and his Emergency Medicine residency at Lincoln Medical and Mental Health Center in the Bronx, where he served as chief resident.

GENERIC NAME: polyethylene glycol 3350

BRAND NAME: Miralax, Glycolax

DRUG CLASS AND MECHANISM: Polyethylene glycol is an osmotic laxative. Polyethylene glycol works by retaining water in the stool, resulting in softer stools and more frequent bowel movements. Polyethylene glycol does not affect glucose and electrolytes in the body.

STORAGE: Store polyethylene glycol packets and jars between temperatures of 20 C and 25 C (68 F and 77 F).

PRESCRIBED FOR: Polyethylene glycol is used for occasional constipation. Polyethylene glycol generates bowel movement in 1 to 3 days. It is also used for bowel preparation prior to procedures.

SIDE EFFECTS: Side effects of polyethylene glycol are diarrhea, nausea, stomach cramps, and flatulence. Patients with have kidney disease should consult with their doctor before using this product.



PREPARATIONS: Powder for solution, supplied in packets and jars: 17 g per scoopful or packet

DOSING: Adults and children 17 years of age and older: For constipation stir and dissolve one packet or scoopful of powder (17 grams) in any 4 to 8 ounces of water then drink once a day. Use no more than 7 days.

Safe and effective use of polyethylene glycol is not established for children under 16 years of age.

DRUG INTERACTIONS: No drug interactions have been established with polyethylene glycol.

PREGNANCY: There are no adequate studies of polyethylene glycol to determine safe and effective use in pregnant women.

NURSING MOTHERS: It is not known whether polyethylene glycol enters the breast milk.

REFERENCE: NIH.gov. POLYETHYLENE GLYCOL (3350)- polyethylene glycol 3500 powder, for solution.

Medically Reviewed by a Doctor on 9/18/2015

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