What is the most effective approach in the use of fiber or polyethylene glycol in the treatment of constipation?

Updated: Mar 30, 2020
  • Author: Marc D Basson, MD, PhD, MBA, FACS; Chief Editor: BS Anand, MD  more...
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Fiber is arguably the best and least expensive medication for long-term treatment, although enthusiasm for the use of polyethylene glycol as first-line therapy in chronic constipation is increasing. It is important to convey to patients that bulk-forming agents generally do not work rapidly and must be used on a long-term basis.

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