Constipation

  • Medical Author:
    Jay W. Marks, MD

    Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Quick GuideDigestive Disorders: Constipation Myths and Facts

Digestive Disorders: Constipation Myths and Facts

What causes constipation?

Theoretically, constipation can be caused by the slow passage of digesting food through any part of the intestine. Most of the time, however, the slowing occurs in the colon.

Medications that cause constipation

A frequently over-looked cause of constipation is medications. The most common offending medications include:

In addition to the medications listed above, there are many others that can cause constipation. Simple measures for treating the constipation (for example, increasing dietary fiber) caused by medications often are effective, and discontinuing the medication may not be not necessary. If simple measures don't work, it may be possible to substitute a less constipating medication. For example, a nonsteroidal ant-inflammatory drug or NSAIDs (for example, ibuprofen) may be substituted for narcotic pain medications, or one of the newer and less constipating antidepressant medications.

Reviewed on 7/16/2015
References
REFERENCE:

Fauci, Anthony S., et al. Harrison's Principles of Internal Medicine. 17th ed. United States: McGraw-Hill Professional, 2011.

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