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GlycoLax Side Effects

Generic name: polyethylene glycol 3350

Medically reviewed by Last updated on Aug 2, 2023.

Note: This document contains side effect information about polyethylene glycol 3350. Some dosage forms listed on this page may not apply to the brand name GlycoLax.

Applies to polyethylene glycol 3350: oral packet, oral powder for solution.

Serious side effects of GlycoLax

Along with its needed effects, polyethylene glycol 3350 (the active ingredient contained in GlycoLax) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking polyethylene glycol 3350:

Incidence not known

For Healthcare Professionals

Applies to polyethylene glycol 3350: oral kit, oral powder for reconstitution.


Frequency not reported: Abdominal distension and pain, borborygmi, nausea, vomiting, diarrhea, bloating, flatulence, abdominal cramping, perianal inflammation and soreness[Ref]


Frequency not reported: Allergic reaction[Ref]

Frequently asked questions


1. Cerner Multum, Inc. "Australian Product Information."

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.