Available in the form of a powder, GlycoLax™ (polyethylene glycol 3350) is a nonprescription laxative used for relieving constipation. Although GlycoLax is no longer manufactured, several generic versions are still available.
This powder is dissolved in four to eight ounces of liquid, such as water, juice, coffee, or tea. Make sure to stir the mixture well to completely dissolve the powder. This mixture is swallowed once daily.
After starting GlycoLax, it may take up to four days to have a bowel movement. Do not take more than the standard dose if you do not have a bowel movement right away, and do not use GlycoLax for more than seven days unless a healthcare provider tells you to do so.
Although most people tolerate this laxative well, GlycoLax can cause side effects, such as nausea, gas, and diarrhea. If negative reactions do occur, they tend to be minor and easily treated.
(For more information on how to mix this powder, click GlycoLax. This eMedTV article describes how this laxative works, lists additional side effects, and offers some safety precautions to be aware of before beginning treatment.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Polyethylene Glycol 3350 Oral. Drug Facts and Comparisons. Drug Facts and Comparisons 4.0 [online]. 2009. Available from Wolters Kluwer Health, Inc. Accessed November 29, 2010.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed November 26, 2010.
National Library of Medicine (US). Hazardous Substances Data Bank (HSDB). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB. Accessed November 26, 2010.
Micromedex Healthcare Series [Internet database]. Greenwood Village, Colo.: Thomson Reuters (Healthcare), Inc. Updated periodically. Accessed November 26, 2010.
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