How is MiraLAX (Polyethylene Glycol 3350) Excreted from the Body?

Learn how MiraLAX works and how its active ingredient polyethylene glycol 3350 is excreted through stool to relieve constipation.

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MiraLAX, primarily used as a laxative, works by holding water in the stool to soften it. The active substance, polyethylene glycol 3350 (PEG 3350), is excreted in the stool. Essentially, the body does not absorb a significant amount of this substance, and it passes through the gastrointestinal system relatively unchanged. It draws water into the bowel, increasing the water content and volume of the stools, making them easier to pass.

FAQs & Answers

  1. What is the active ingredient in MiraLAX? The active ingredient in MiraLAX is polyethylene glycol 3350 (PEG 3350), which helps soften stools by retaining water in the bowel.
  2. Does MiraLAX get absorbed into the bloodstream? No, polyethylene glycol 3350 in MiraLAX is minimally absorbed by the body and mostly passes through the gastrointestinal tract unchanged.
  3. How does MiraLAX soften stool? MiraLAX works by drawing water into the bowel, increasing stool water content and volume, which makes stools easier to pass.
  4. How is polyethylene glycol 3350 excreted after taking MiraLAX? Polyethylene glycol 3350 is excreted primarily in the stool, as it passes through the digestive system without significant absorption.