Non-prescription Medications and Products

Bulking Agents and Laxatives

There are two types of products used to prevent or treat constipation: bulking agents and laxatives.

Bulking agents, such as bran or psyllium (found in Metamucil, for example) ease constipation by increasing the volume of stool and making it easier to pass. Regular use of bulking agents is safe and helps make them more effective.

Laxatives (such as Correctol, Ex-Lax, Senokot, and Dulcolax) speed up the passage of stool by irritating the lining of the intestines. Regular laxative use is not recommended.

There are many other ways to treat constipation, such as drinking more water. For more information, see the topic Constipation, Age 12 and Older.

Precautions

• Take any laxative or bulking agent with plenty of water or other liquids.
• Do not take laxatives regularly. Overuse of laxatives decreases tone and sensation in the large intestine, causing laxative dependence. If you need help keeping your bowels regular, use a bulking agent.
• Regular use of some laxatives (such as Correctol, Ex-Lax, and Feen-a-Mint) may interfere with your body's ability to absorb vitamin D and calcium; this can lead to weakened bones.

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Author:	Katy E. Magee, MA Sydney Youngerman-Cole, RN, BSN, RNC	Last Updated: July 31, 2006
Medical Review:	Patrice Burgess, MD - Family Medicine Martin Gabica, MD - Family Medicine Tom Bailey, MD - Family Medicine
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