When does diarrhea occur in patients with multiple sclerosis (MS), and how is it treated?

Updated: Oct 08, 2019
  • Author: Christopher Luzzio, MD; Chief Editor: Jasvinder Chawla, MD, MBA  more...
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Diarrhea, if it occurs, typically is not related to MS per se. Rather, it is more likely from fecal impaction, diet, irritation of the bowel, or overuse of laxatives or stool softeners. Diarrhea may also be an adverse effect of medications.

Diarrhea is treated first by eliminating the cause and then, possibly, with bulk formers (eg, psyllium). Drugs that slow the muscles of the bowel, such as Lomotil (diphenoxylate and atropine) are rarely indicated.

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