Methylcellulose: Uses & Side Effects

Methylcellulose (Citrucel) is a bulk-forming laxative that increases the amount of water in your stools to help make them softer and easier to pass. It is used to treat constipation and to help maintain regular bowel movements.


What should you know before taking this medicine?

You should not take methylcellulose if you are allergic to it.

Ask a doctor or pharmacist if it is safe for you to use methylcellulose if you have other medical conditions, especially:

  • Irritable bowel syndrome;
  • Trouble swallowing;
  • Stomach pain with nausea or vomiting;
  • A sudden change in bowel habits that lasts 2 weeks or longer; or
  • If you have been constipated for more than 1 week.

This medicine may contain phenylalanine. Talk to your doctor before using methylcellulose if you have phenylketonuria (PKU).

Ask your doctor before taking methylcellulose if you are pregnant or breast-feeding a baby.

Do not give this medicine to a child younger than 6 years old without medical advice.


Side effects

Call your doctor at once if you have:

  • Severe stomach cramps, rectal bleeding; or
  • No bowel movement within 3 days after using methylcellulose.


Keywords: methylcellulose; Citrucel

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